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Important Update News
The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.
The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.
We are grateful to NASA for the funding of this effort.
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Welcome to the RRUFF Project website containing an integrated database of Raman spectra, X-ray diffraction and chemistry data for minerals. |
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Katayamalite RRUFF ID: R070147 |
Ideal Chemistry: KLi3Ca7Ti4+2(SiO3)12(OH)2 |
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Locality: Dara-i-Pioz, Hait, Alayskiy (Alay; Alai) Range, South Tien-Shan Mts., Tajikistan Source: Michael Scott S105814 Owner: RRUFF Description: Light tan colored platy massive Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Baratovite (2) ] | ||||||||||
| Quick search: [ All Katayamalite samples (2) ] | ||||||||||
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Katayamalite RRUFF ID: R120164 |
Ideal Chemistry: KLi3Ca7Ti4+2(SiO3)12(OH)2 |
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Locality: Iwagi Island, Inland Sea, Ehime Prefecture, Japan Source: Donald Doell Owner: RRUFF Description: Colorless platy crystals with a brilliant bluish white fluorescence (short wave), associated with albite, wollastonite, pectolite, and aegirine. Crystal used in Andrade et al (2013) study Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Baratovite (2) ] | ||||||||||
| Quick search: [ All Katayamalite samples (2) ] | ||||||||||
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Katoite RRUFF ID: R070646 |
Ideal Chemistry: Ca3Al2(OH)12 |
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Locality: Synthetic Source: Marcus Origlieri Owner: RRUFF Description: White to colorless powder mixed with small trapezohedral crystals, sample from Lager et al (2002) study. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ garnet (97) ] | ||||||||||
| Quick search: [ All Katoite samples (2) ] | ||||||||||
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Katoite RRUFF ID: R080034 |
Ideal Chemistry: Ca3Al2(OH)12 |
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Locality: Wilui River, Russia Source: Royal Ontario Museum M11320 Owner: RRUFF Description: Pale yellow to colorless euhedral crystals associated with dark brown andradite crystals Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ garnet (97) ] | ||||||||||
| Quick search: [ All Katoite samples (2) ] | ||||||||||
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Katoptrite RRUFF ID: R140009 |
Ideal Chemistry: Mn2+13Al4Sb5+2O20(SiO4)2 |
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Locality: Brattfors mine, Nordmark, Filipstad, Värmland, Sweden Source: Rock Currier Owner: RRUFF Description: Black grains, thin black splinters or flakes Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Katoptrite (2) ] | ||||||||||
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Kazanskyite RRUFF ID: R130020 |
Ideal Chemistry: Ba◻Ti4+Nb5+Na3Ti4+(Si2O7)2O2(OH)2(H2O)2 |
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Locality: Kirovskii mine, Mount Kukisvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia Source: Fernando Camara Owner: Fernando Camara Description: Colourless to very pale tan flakes, associated with natrolite, barytolamprophyllite, nechelyustovite, hydroxylapatite, belovite-(La), belovite-(Ce), gaidonnayite, nenadkevichite, epididymite, apophyllite-(KF) and sphalerite. Data from Camara et al (2012) Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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Kegelite RRUFF ID: R080021 |
Ideal Chemistry: Pb2+4Al2Si4O10(S6+O4)(CO3)2(OH)4 |
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Locality: Tsumeb, Namibia Source: William W. Pinch Owner: RRUFF Description: Colorless sectile crystal plates with perfect (100) cleavage, associated with mimetite Status: The identification of this mineral is not yet confirmed. |
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Keilite RRUFF ID: R070104 |
Ideal Chemistry: Fe2+S2- |
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Locality: Abee meteorite, Alberta, Canada Source: Michael Scott S105070 Owner: RRUFF Description: Dark gray metallic polished fragment embedded in epoxy Status: The identification of this mineral has been confirmed only by chemical analysis |
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| Mineral Group: [ Rocksalt (18) ] | ||||||||||
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Keiviite-(Yb) RRUFF ID: R060522 |
Ideal Chemistry: Yb3+2Si2O7 |
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Locality: Mount Ploskaja, west Keivy, Kola, Russia Source: Michael Scott S100282 Owner: RRUFF Description: White massive blebs in fluorite Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Thortveitite (3) ] | ||||||||||
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Kellyite RRUFF ID: R060903 |
Ideal Chemistry: (Mn2+,Mg,Al)3(Si,Al)2O5(OH)4 |
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Locality: Near Bald Knob, Alleghany County, North Carolina, USA Source: Michael Scott S100995 Owner: RRUFF Description: Light-yellow irregular to platy tablets Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Groups: [ Clay (86) ] [ serpentine (12) ] | ||||||||||
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Kemmlitzite RRUFF ID: R070663 |
Ideal Chemistry: SrAl3(As5+O4)(S6+O4)(OH)6 |
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Locality: Falotta, Tinizong (Tinzen), Sursass (Oberhalbstein), Grischun (Grisons; Graubünden), Switzerland Source: Michael Scott S102336 Owner: RRUFF Description: Black bleb included in rhodonite Status: The identification of this mineral is not yet confirmed. |
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| Mineral Groups: [ alunite (46) ] [ beudantite (14) ] | ||||||||||
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Kempite RRUFF ID: R070679 |
Ideal Chemistry: Mn2+2Cl(OH)3 |
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Locality: Oktyabr'sky mine, Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia Source: Michael Scott S106035 Owner: RRUFF Description: Metallic fragment with a green tinge, associated with pale grey magnetite, polished and embedded in epoxy Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Atacamite (16) ] | ||||||||||
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Kenoargentotetrahedrite-(Fe) RRUFF ID: R061081 |
Ideal Chemistry: Ag1+6(Cu1+4Fe2+2)Sb4S2-12◻ |
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Locality: Sadie mine, Elsa, Yukon, Canada Source: Lloyd Twaites LT 863 Owner: RRUFF Description: Dark gray metallic massive Status: The identification of this mineral has been made only by X-ray diffraction. |
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| Mineral Group: [ Tetrahedrite (11) ] | ||||||||||
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Kenoplumbomicrolite RRUFF ID: R130729 |
Ideal Chemistry: (Pb2+,◻)2Ta5+2O6[◻,(OH),O] |
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Locality: Ploskaya Mountains, Keivy Massif, Kola, Russian Federation Source: Donald Doell Owner: RRUFF Description: Massive brown crystals with uneven fracture. Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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Kentbrooksite RRUFF ID: R110208 |
Ideal Chemistry: (Na,La3+)15(Ca,La3+)6Mn2+3Zr4+3Nb5+Si25O73(O,OH,H2O)3(F,Cl)2 |
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Locality: Pocos de Caldas plateau, Minas Gerais, Brazil Source: Gunnar Farber Owner: RRUFF Description: Red massive crystalline associated with aegirine and nepheline Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ eudialyte (13) ] | ||||||||||
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Kentrolite RRUFF ID: R060245 |
Ideal Chemistry: Pb2+2Mn3+2O2(Si2O7) |
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Locality: Percha Creek area, Hillsboro District, Sierra County, New Mexico, USA Source: William W. Pinch Owner: RRUFF Description: Dark-purple colored single crystals associated with orange colored prismatic vanadinite and calcite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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Kermesite RRUFF ID: R060742 |
Ideal Chemistry: Sb3+2OS2-2 |
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Locality: Pezinok, Czechoslovakia Source: Michael Scott S101199 Owner: RRUFF Description: Dark red elongated bladed crystals associated with quartz and blue tanished gudmundite, R060741 Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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Kernite RRUFF ID: R050661 |
Ideal Chemistry: Na2B4O6(OH)2·3H2O |
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Locality: Boron, Kern County, California, USA Source: Marcus Origlieri Owner: RRUFF Description: Colorless cleavage fragment Status: The identification of this mineral has been confirmed by X-ray diffraction. |
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Kësterite RRUFF ID: R120098 |
Ideal Chemistry: Cu1+2Zn2+Sn4+S2-4 |
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Locality: Xuebaoding, Sichuan Province, China Source: Marcus Origlieri Owner: RRUFF Description: Metallic gray surficially altered to green mushistonite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Groups: [ Stannite (11) ] [ Sphalerite (35) ] | ||||||||||
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Kettnerite RRUFF ID: R130113 |
Ideal Chemistry: CaBi3+O(CO3)F |
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Locality: Flying Saucer Group, Maricopa County, Arizona Source: Mark Ascher Owner: RRUFF Description: Both colorless and lemon-yellow small platy crystals, associated with R130114 eulytine, and yellow-green mottramite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Bismutite (3) ] | ||||||||||
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Keyite RRUFF ID: R050585 |
Ideal Chemistry: (◻0.5Cu2+0.5)Cu2+Cd2+Zn2+2(As5+O4)3·H2O |
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Locality: Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia Source: University of Arizona Mineral Museum 14754 Owner: RRUFF Description: Microscopic blue prismatic crystals embedded in green zincolivenite, R050583, and associated with schultenite, R050584 Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Alluaudite (22) ] | ||||||||||
| Quick search: [ All Keyite samples (2) ] | ||||||||||
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Keyite RRUFF ID: R090039 |
Ideal Chemistry: (◻0.5Cu2+0.5)Cu2+Cd2+Zn2+2(As5+O4)3·H2O |
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Locality: Tsumeb, Namibia Source: William W. Pinch Owner: RRUFF Description: Blue crystals associated with green zincolivenite on matrix of tennantite. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Alluaudite (22) ] | ||||||||||
| Quick search: [ All Keyite samples (2) ] | ||||||||||
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Keystoneite RRUFF ID: R070660 |
Ideal Chemistry: Mg0.5Ni2+Fe3+(Te4+O3)3·4H2O |
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Locality: McAlpine mine, Moccasin, Tuolumne County, California, USA Source: Michael Scott S105215 Owner: RRUFF Description: Clusters of greenish yellow acicular microcrystals associated with quartz and pyrite. Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Zemannite (3) ] | ||||||||||
| Quick search: [ All Keystoneite samples (2) ] | ||||||||||
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Keystoneite RRUFF ID: R070661 |
Ideal Chemistry: Mg0.5Ni2+Fe3+(Te4+O3)3·4H2O |
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Locality: McAlpine mine, Moccasin, Tuolumne County, California, USA Source: Michael Scott S106029 Owner: RRUFF Description: Clusters of greenish yellow acicular microcrystals associated with quartz and pyrite. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Zemannite (3) ] | ||||||||||
| Quick search: [ All Keystoneite samples (2) ] | ||||||||||
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Khaidarkanite RRUFF ID: R060322 |
Ideal Chemistry: Cu2+4Al3(OH)14F3·2H2O |
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Locality: Khaidarkan, (Kirgizia) Kyrgyzstan Source: Michael Scott S100280 Owner: RRUFF Description: Pale sky blue acicular divergent crystals, each fiber is an aggregate of even finer fibers Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Cyanotrichite (4) ] | ||||||||||
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Khanneshite RRUFF ID: R070672 |
Ideal Chemistry: (Na,Ca)3(Ba,Sr,Ce3+,Ca)3(CO3)5 |
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Locality: Tuliylukht Bay, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Source: Michael Scott S102128 Owner: RRUFF Description: Vitreous orange massive on single grain Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ burbankite (8) ] | ||||||||||
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Khinite RRUFF ID: R080124 |
Ideal Chemistry: Cu2+3Pb2+Te6+O6(OH)2 |
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Locality: 400 ft. level, Empire mine, Tombstone, Arizona Source: William W. Pinch Owner: RRUFF Description: Aggregates of dark emerald-green hexagonal prismatic crystals, this is the -3T polytype, previously known as parakhinite. Sample was used in the Hawthorne et al (2008) study Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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Kidwellite RRUFF ID: R060324 |
Ideal Chemistry: NaFe3+9+x(PO4)6(OH)11·3H2O (x ≈ 1/3) |
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Locality: York mine, Polk County, Arkansas, USA Source: Michael Scott S100182 Owner: RRUFF Description: Light green radiating acicular crystals forming a spherical mat Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Quick search: [ All Kidwellite samples (2) ] | ||||||||||
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Kidwellite RRUFF ID: R070106 |
Ideal Chemistry: NaFe3+9+x(PO4)6(OH)11·3H2O (x ≈ 1/3) |
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Locality: Teskov, Czech Republic Source: Bob Jenkins Owner: RRUFF Description: Tan colored hemispheres on quartz, associated with meurigite, R070105 Status: The identification of this mineral is not yet confirmed. |
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| Quick search: [ All Kidwellite samples (2) ] | ||||||||||
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Kimuraite-(Y) RRUFF ID: R050586 |
Ideal Chemistry: CaY2(CO3)4·6H2O |
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Locality: Mitsukoshi, Hizen town, Higashimatsuura County, Saga Prefecture, Japan Source: Marcus Origlieri Owner: RRUFF Description: Aggregate of white scaly crystals Status: The identification of this mineral has been confirmed only by chemical analysis |
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| Mineral Group: [ Tengerite (3) ] | ||||||||||
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Kimzeyite RRUFF ID: R060148 |
Ideal Chemistry: Ca3Zr4+2(Al2Si)O12 |
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Locality: Magnet Cove, Arkansas, USA Source: University of Arizona Mineral Museum Owner: RRUFF Description: Black dodecahedra mixed with andradite and associated with quartz Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ garnet (97) ] | ||||||||||
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Kingite RRUFF ID: R060997 |
Ideal Chemistry: Al3(PO4)2F2(OH)·7H2O |
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Locality: Clinton, South Australia Source: Bob Jenkins Owner: RRUFF Description: White consolidated micron-sized laths Status: The identification of this mineral is not yet confirmed. |
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Kingsmountite RRUFF ID: R220015 |
Ideal Chemistry: Ca3Mn2+Fe2+Al4(PO4)6(OH)4·12H2O |
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Locality: Silbergrube, Waidhaus, Bavaria, Germany Source: Herwig Pelckmans Owner: RRUFF Description: Sprays of clear colorless thin platy crystals Status: unconfirmed |
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| Mineral Group: [ Calcioferrite (6) ] | ||||||||||
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Kinoite RRUFF ID: R040155 |
Ideal Chemistry: Ca2Cu2+2Si3O10·2H2O |
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Locality: Christmas mine, Christmas, Gila County, Arizona, USA Source: University of Arizona Mineral Museum 10333 Owner: RRUFF Description: Pale blue crust Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Quick search: [ All Kinoite samples (2) ] | ||||||||||
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Kinoite RRUFF ID: R050168 |
Ideal Chemistry: Ca2Cu2+2Si3O10·2H2O |
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Locality: Christmas mine, Christmas, Gila County, Arizona, USA Source: Marcus Origlieri Owner: RRUFF Description: Blue tabular crystals associated with hydroxyapophyllite, R050169 Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Quick search: [ All Kinoite samples (2) ] | ||||||||||
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Kinoshitalite RRUFF ID: R070656 |
Ideal Chemistry: BaMg3(Si2Al2)O10(OH)2 |
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Locality: Hokkejino, Kyoto Prefecture, Kinki Region, Honshu Island, Japan Source: Michael Scott S102325 Owner: RRUFF Description: Yellowish brown platy crystals in granular matrix of tephroite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Groups: [ mica (50) ] [ Clay (86) ] | ||||||||||
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Kipushite RRUFF ID: R060826 |
Ideal Chemistry: Cu2+6(PO4)2(OH)6·H2O |
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Locality: Shaba Provence, Zaire Source: Michael Scott S101188 Owner: RRUFF Description: Spherical aggregates of medium and dark greenish blue mineral associated with pseudo-kipushite Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Philipsburgite (2) ] | ||||||||||
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Kirschsteinite RRUFF ID: R070266 |
Ideal Chemistry: CaFe2+SiO4 |
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Locality: Dolores mine, Pastrana, Mazarrón, Murcia, Spain Source: Michael Scott S105226 Owner: RRUFF Description: Aggregate of vitreous brown rhombic prismatic crystals with conchoidal fracture Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Olivine (61) ] | ||||||||||
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Klebelsbergite RRUFF ID: R060157 |
Ideal Chemistry: Sb3+4O4(S6+O4)(OH)2 |
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Locality: Pereta mine, near Grosseto, Tuscany, Italy Source: Marcus Origlieri Owner: RRUFF Description: Yellow-orange tufted aggregates of bladed crystals on stibnite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Klebelsbergite (1) ] | ||||||||||
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Kleinite RRUFF ID: R060329 |
Ideal Chemistry: (Hg2N)1+(Cl,S6+O4)·nH2O |
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Locality: McDermott mine, Humboldt County, Nevada, USA Source: Michael Scott S100169 Owner: RRUFF Description: Light yellow hexagonal prismatic or tabular crystals, associated with orange or dark yellow platy terlinguacreekite. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Kleinite samples (2) ] | ||||||||||
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Kleinite RRUFF ID: R150103 |
Ideal Chemistry: (Hg2N)1+(Cl,S6+O4)·nH2O |
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Locality: Terlingua, Brewster Co., Texas, USA Source: William W. Pinch Owner: RRUFF Description: Aggregates of orange short hexagonal prismatic crystals, associated with colorless or white prismatic gypsum. Part of the type find. Status: The identification of this mineral is not yet confirmed. |
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| Quick search: [ All Kleinite samples (2) ] | ||||||||||
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Klockmannite RRUFF ID: R070658 |
Ideal Chemistry: Cu5.2Se6 |
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Locality: Cacheuta mine, Cerro de Cacheuta, Sierra de Cacheuta, Mendoza, Argentina Source: Michael Scott S105180 Owner: RRUFF Description: Metallic steel-gray granular aggregates with dull blue-green tarnish associated with umangite mounted in epoxy disc Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Covellite (4) ] | ||||||||||
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Klyuchevskite RRUFF ID: R070659 |
Ideal Chemistry: K3Cu2+3Fe3+O2(S6+O4)4 |
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Locality: Yadevitaya fumarole, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia Source: Michael Scott S105208 Owner: RRUFF Description: Clusters of dark green radiating prismatic crystals associated with langbeinite, co-type sample Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Klyuchevskite (2) ] | ||||||||||
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Kobellite RRUFF ID: R070669 |
Ideal Chemistry: Pb2+11(Cu1+,Fe2+)2(Bi3+,Sb3+)15S2-35 |
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Locality: Jedlovec (Fichtenhubel) deposit, Smolník ore belt, Slovenske Rudohorie Mts, Koický Kraj, Slovak Republic Source: Michael Scott S105219 Owner: RRUFF Description: Steel gray metallic massive associated with chalcopyrite and siderite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Kobellite (9) ] | ||||||||||
| Quick search: [ All Kobellite samples (2) ] | ||||||||||
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Kobellite RRUFF ID: R110092 |
Ideal Chemistry: Pb2+11(Cu1+,Fe2+)2(Bi3+,Sb3+)15S2-35 |
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Locality: Crabtree quarry, Wake County, North Carolina, USA Source: Mark Feinglos Owner: RRUFF Description: Dark grey metallic massive, associated with quartz Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Kobellite (9) ] | ||||||||||
| Quick search: [ All Kobellite samples (2) ] | ||||||||||
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Kobyashevite RRUFF ID: R160001 |
Ideal Chemistry: Cu2+5(S6+O4)2(OH)6·4H2O |
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Locality: Ojuela mine (Cumbres lugar), Mapimí, Durango, Mexico Source: Eugene Schlepp Owner: RRUFF Description: Turquoise colored short-bladed or tabular crystals associated with gypsum microcrystals coating calcite and hemimorphite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Not in a structural group (133) ] | ||||||||||
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Koenenite RRUFF ID: R060989 |
Ideal Chemistry: Na4Mg9Al4Cl12(OH)22 |
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Locality: Grauer Salzton, Bergmannssegen Quarry, Lehrte, near Hannover, Germany Source: Michael Scott S101315 Owner: RRUFF Description: Aggregate of orange tabular crystals showing a micaceous cleavage. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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Kolarite RRUFF ID: R070677 |
Ideal Chemistry: PbTeCl2 |
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Locality: Oktyabr'sky Mine, Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia Source: Michael Scott S106032 Owner: RRUFF Description: Steel gray metallic massive polished fragment embedded in epoxy Status: The identification of this mineral is not yet confirmed. |
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Kolbeckite RRUFF ID: R060981 |
Ideal Chemistry: ScPO4·2H2O |
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Locality: Hot Springs County, Arkansas, USA Source: Bob Jenkins Owner: RRUFF Description: Greenish-yellow prismatic single crystal. Used in the Yang et al (2007) study Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Phosphosiderite (6) ] | ||||||||||
| Quick search: [ All Kolbeckite samples (2) ] | ||||||||||
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Kolbeckite RRUFF ID: R061040 |
Ideal Chemistry: ScPO4·2H2O |
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Locality: Christy Pit, Magnet Cove, Arkansas, USA Source: Mark Mauthner Owner: RRUFF Description: Green platy crystal, severely twinned, associated with quartz. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Phosphosiderite (6) ] | ||||||||||
| Quick search: [ All Kolbeckite samples (2) ] | ||||||||||
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Komarovite RRUFF ID: R070054 |
Ideal Chemistry: (Ca,Sr,Na)6-x(Nb5+,Ti4+)6(Si4O12)(O,OH,F)16·nH2O |
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Locality: Kukisvumchorr Mountain, Khibiny Massif, Kola Peninsula, Russia Source: Michael Scott S105071 Owner: RRUFF Description: Pale rose colored tabular crystals associated with natrolite Status: The identification of this mineral is not yet confirmed. |
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Kombatite RRUFF ID: R070720 |
Ideal Chemistry: Pb2+14O9(V5+O4)2Cl4 |
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Locality: Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia Source: William W. Pinch Owner: RRUFF Description: Yellow irregular crystals with perfect cleavage, associated with black jacobsite, R070719 and colorless barysilite, R070651 Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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)
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Koritnigite RRUFF ID: R060654 |
Ideal Chemistry: Zn2+(As5+O3OH)·H2O |
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Locality: Jachymov, Czech Republic Source: Michael Scott S101163 Owner: RRUFF Description: Reddish-pink spherical aggregates Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Koritnigite (3) ] | ||||||||||
)
|
Kornerupine RRUFF ID: R050214 |
Ideal Chemistry: (Mg,Fe2+,Al,◻)10(Si,Al,B)5O21(OH,F)2 |
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Locality: Sri Lanka Source: Jibamitra Ganguly Owner: RRUFF Description: Water-worn single crystal fragment Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Kornerupine (3) ] | ||||||||||
| Quick search: [ All Kornerupine samples (2) ] | ||||||||||
)
|
Kornerupine RRUFF ID: R100155 |
Ideal Chemistry: (Mg,Fe2+,Al,◻)10(Si,Al,B)5O21(OH,F)2 |
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Locality: Sri Lanka Source: William W. Pinch Owner: RRUFF Description: Colorless to pale yellow cut gemstone Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Kornerupine (3) ] | ||||||||||
| Quick search: [ All Kornerupine samples (2) ] | ||||||||||
)
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Korobitsynite RRUFF ID: R110192 |
Ideal Chemistry: (Na,◻)4Ti4+2(Si4O12)(O,OH)2·4H2O |
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Locality: Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada Source: Donald Doell Owner: RRUFF Description: Colorless bladed crystals Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ labuntsovite (11) ] | ||||||||||
)
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Kosmochlor RRUFF ID: R120015 |
Ideal Chemistry: NaCr3+Si2O6 |
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Locality: Synthetic Source: George Harlow Owner: RRUFF Description: Green fragments. Sample was synthesized by Harlow (1997) and used in the Origlieri et al (2003) study Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ pyroxene (81) ] | ||||||||||
)
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Kosnarite RRUFF ID: R060250 |
Ideal Chemistry: KZr4+2(PO4)3 |
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Locality: Jenipapo District, Itinga, Minas Gerais, Brazil Source: William W. Pinch Owner: RRUFF Description: Tan to colorless fragment Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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)
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Kostovite RRUFF ID: R070282 |
Ideal Chemistry: AuCuTe4 |
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Locality: Chelopech mine, Chelopech Obshchina, Balkan Mts, Sofiya Oblast, Bulgaria Source: Michael Scott S100607 Owner: RRUFF Description: Dark gray metallic fragment embedded in epoxy. Portion of type sample Status: The identification of this mineral has been confirmed only by chemical analysis |
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)
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Kotoite RRUFF ID: R060940 |
Ideal Chemistry: Mg3(BO3)2 |
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Locality: Hol Kol mine, Samdung, near Pyongyang, Suan County, North Korea Source: Michael Scott S101243 Owner: RRUFF Description: Aggregate of pale green micro grains Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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)
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Köttigite RRUFF ID: R110032 |
Ideal Chemistry: Zn2+3(As5+O4)2·8H2O |
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Locality: 44 level, Tsumeb mine, Tsumeb, Namibia Source: William W Pinch Owner: RRUFF Description: Bundles of gray acicular crystals associated with ludlockite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Vivianite (17) ] | ||||||||||
| Quick search: [ All Köttigite samples (2) ] | ||||||||||
)
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Köttigite RRUFF ID: R110035 |
Ideal Chemistry: Zn2+3(As5+O4)2·8H2O |
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Locality: Ojuela mine, Mapimi, Durango, Mexico Source: The University of Arizona Mineral Museum 18728 Owner: Marcus J. Origlieri Description: Spray of dark blue bladed crystals Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Vivianite (17) ] | ||||||||||
| Quick search: [ All Köttigite samples (2) ] | ||||||||||
)
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Kovdorskite RRUFF ID: R050505 |
Ideal Chemistry: Mg2PO4(OH)·3H2O |
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Locality: Kovdor Massif, Kola Peninsula, Russia Source: Bob Downs Owner: RRUFF Description: Colorless prismatic crystals, slightly pink in color when viewed in bulk. This sample was used in the structural study by Morrison et al (2012) Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Not in a structural group (133) ] | ||||||||||
| Quick search: [ All Kovdorskite samples (2) ] | ||||||||||
)
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Kovdorskite RRUFF ID: R060579 |
Ideal Chemistry: Mg2PO4(OH)·3H2O |
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Locality: Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Source: Michael Scott S100808 Owner: RRUFF Description: Pale blue prismatic crystals Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Not in a structural group (133) ] | ||||||||||
| Quick search: [ All Kovdorskite samples (2) ] | ||||||||||
)
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Kozoite-(La) RRUFF ID: R060995 |
Ideal Chemistry: LaCO3(OH) |
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Locality: Mitsukoshi, Hizen-cho, Karatsu City, Saga Prefecture, Japan Source: Marcus Origlieri Owner: RRUFF Description: Pink spheres, radially zoned with kozoite-(Nd). Surface of spheres are reported to be kozoite-(Nd). Kozoite-(La) are distinguished from kozoite-(Nd) by being closer to white. Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Ancylite (6) ] | ||||||||||
)
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Kozoite-(Nd) RRUFF ID: R060996 |
Ideal Chemistry: NdCO3(OH) |
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Locality: Mitsukoshi, Hizen-cho, Karatsu City, Saga Prefecture, Japan Source: Marcus Origlieri Owner: RRUFF Description: Pink sphere, radially zoned with kozoite-(La). The kozoite-(Nd) is distinguished from kozoite-(La) by being pinker in color. Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Ancylite (6) ] | ||||||||||
)
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Kraisslite RRUFF ID: R060328 |
Ideal Chemistry: Zn2+3(Mn2+,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16 |
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Locality: Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA Source: Michael Scott S100194 Owner: RRUFF Description: Coppery brown thin plates Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Hematolite (6) ] | ||||||||||
)
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Krásnoite RRUFF ID: R120056 |
Ideal Chemistry: Ca3Al7.7Si3P4O23.5(OH)12.1F2·8H2O |
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Locality: Horní Slavkov, Czech Republic Source: Bob Jenkins Owner: RRUFF Description: Aggregate of colorless thin hexagonal plates on quartz Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Perhamite (2) ] | ||||||||||
)
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Krasnovite RRUFF ID: R080115 |
Ideal Chemistry: Ba(Al,Mg)(PO4,CO3)(OH)2·H2O |
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Locality: Cerro Sapo Carbonatite dyke, Cochabamba, Bolivia Source: William W. Pinch Owner: RRUFF Description: Pastel blue, vitreous massive, associated with blue sodalite and white ankerite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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)
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Krausite RRUFF ID: R110211 |
Ideal Chemistry: KFe3+(S6+O4)2·H2O |
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Locality: Mina Alcaparrosa, Cerritos Bayos, Calama, Atacama, II Region, Chile Source: Gunnar Farber Owner: RRUFF Description: Aggregates of colorless bladed crystals associated with pertlikite R110209 and coquimbite R110210 Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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)
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Krauskopfite RRUFF ID: R070657 |
Ideal Chemistry: BaSi2O5·3H2O |
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Locality: Rush Creek, Fresno County, California, USA Source: Michael Scott S105171 Owner: RRUFF Description: Colorless to white bladed crystals associated with witherite and quartz. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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)
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Krautite RRUFF ID: R060967 |
Ideal Chemistry: Mn2+(As5+O3OH)·H2O |
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Locality: Jachymov, Bohemia, Czech Republic Source: Michael Scott S100387 Owner: RRUFF Description: Pink spheroidal aggregates and crusts found with other secondary arsenic minerals, quartz and mica Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Koritnigite (3) ] | ||||||||||
)
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Krennerite RRUFF ID: R060138 |
Ideal Chemistry: Au3AgTe8 |
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Locality: Strong mine, Cripple Creek, Teller County, Colorado, USA Source: University of Arizona Mineral Museum 13274 Owner: RRUFF Description: Gray metallic prismatic crystal, striated parallel to [001] Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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)
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Krinovite RRUFF ID: R140079 |
Ideal Chemistry: Na4(Mg8Cr3+4)O4[Si12O36] |
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Locality: Wichita County Meteorite, Wichita County, Texas, USA Source: Rock Currier Owner: RRUFF Description: Broken pieces of green crystals. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Sapphirine (12) ] | ||||||||||
)
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Kristiansenite RRUFF ID: R090022 |
Ideal Chemistry: Ca4Sc2Sn4+2(Si2O7)2(Si2O6OH)2 |
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Locality: Heftetjern, Tørdal, Telemark, Norway Source: William W. Pinch Owner: RRUFF Description: Pale tan colored, tapering prismatic crystals, associated with albite and quartz Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Kristiansenite (1) ] | ||||||||||
)
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Kröhnkite RRUFF ID: R050604 |
Ideal Chemistry: Na2Cu2+(S6+O4)2·2H2O |
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Locality: Chuquicamata, Chile Source: University of Arizona Mineral Museum Owner: RRUFF Description: Green elongated prismatic crystals with orange natrojarosite and minor colorless leightonite Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Roselite (18) ] | ||||||||||
| Quick search: [ All Kröhnkite samples (2) ] | ||||||||||
)
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Kröhnkite RRUFF ID: R060111 |
Ideal Chemistry: Na2Cu2+(S6+O4)2·2H2O |
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Locality: Chuquicamata, Chile Source: University of Arizona Mineral Museum 275 Owner: RRUFF Description: Green bladed crystals Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Roselite (18) ] | ||||||||||
| Quick search: [ All Kröhnkite samples (2) ] | ||||||||||
)
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Krupkaite RRUFF ID: R061038 |
Ideal Chemistry: Cu1+Pb2+Bi3+3S2-6 |
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Locality: Vysna Boca, Slovakia Source: Michael Scott S101153 Owner: RRUFF Description: Silver metallic stringers associated with orange siderite and white quartz Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Meneghinite (7) ] | ||||||||||
| Quick search: [ All Krupkaite samples (3) ] | ||||||||||
)
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Krupkaite RRUFF ID: R070310 |
Ideal Chemistry: Cu1+Pb2+Bi3+3S2-6 |
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Locality: MaGruder Peak Quadrangle, near Goldfield, Esmerelda County, Nevada, USA Source: James Shigley Owner: RRUFF Description: Acicular metallic golden crystal with blue iridescence, embedded in quartz. Space group determined in order to help with the identification. Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Meneghinite (7) ] | ||||||||||
| Quick search: [ All Krupkaite samples (3) ] | ||||||||||
)
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Krupkaite RRUFF ID: R100098 |
Ideal Chemistry: Cu1+Pb2+Bi3+3S2-6 |
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Locality: Julcani District, Peru Source: Peter Megaw Owner: RRUFF Description: Bladed steel-gray metallic crystals with blue irridescence Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Meneghinite (7) ] | ||||||||||
| Quick search: [ All Krupkaite samples (3) ] | ||||||||||
)
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Krut'aite RRUFF ID: R060381 |
Ideal Chemistry: Cu2+(Se2)2- |
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Locality: El Dragon mine, Potosi, Bolivia Source: Michael Scott S100093 Owner: RRUFF Description: Grey metallic octahedra Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Pyrite (16) ] | ||||||||||
)
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Kryzhanovskite RRUFF ID: R130050 |
Ideal Chemistry: (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 |
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Locality: Bull Moose mine, Custer County, South Dakota, USA Source: Don Doell Owner: RRUFF Description: Light brown massive Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Reddingite (9) ] | ||||||||||
| Quick search: [ All Kryzhanovskite samples (3) ] | ||||||||||
)
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Kryzhanovskite RRUFF ID: R130691 |
Ideal Chemistry: (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 |
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Locality: Rapid Creek, Dawson Mining District, Yukon Territory, Canada Source: Rob Lavinsky Owner: RRUFF Description: Euhedral reddish brown crystals Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Reddingite (9) ] | ||||||||||
| Quick search: [ All Kryzhanovskite samples (3) ] | ||||||||||
)
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Kryzhanovskite RRUFF ID: R140111 |
Ideal Chemistry: (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 |
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Locality: Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany Source: Rock Currier Owner: RRUFF Description: Deep red vitreous, almost black, blocky crystals and massive. Golden-brown, bronze on cleavage surfaces Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Reddingite (9) ] | ||||||||||
| Quick search: [ All Kryzhanovskite samples (3) ] | ||||||||||
)
|
Ktenasite RRUFF ID: R070081 |
Ideal Chemistry: Zn2+Cu2+4(S6+O4)2(OH)6·6H2O |
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Locality: Amot, Modum, Norway Source: Bob Jenkins Owner: RRUFF Description: Radial aggregates of bluish green tabular crystals, associated with colorless tabular gypsum crystals. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Groups: [ Ktenasite (6) ] [ Devilline (4) ] | ||||||||||
| Quick search: [ All Ktenasite samples (2) ] | ||||||||||
)
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Ktenasite RRUFF ID: R090002 |
Ideal Chemistry: Zn2+Cu2+4(S6+O4)2(OH)6·6H2O |
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Locality: Oh mine, Gila County, Arizona, USA Source: Michael Scott S100183 Owner: RRUFF Description: Radial aggregates of bluish green tabular crystals associated with serpierite, R060475 Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Groups: [ Ktenasite (6) ] [ Devilline (4) ] | ||||||||||
| Quick search: [ All Ktenasite samples (2) ] | ||||||||||
)
|
Kukharenkoite-(Ce) RRUFF ID: R110190 |
Ideal Chemistry: Ba2Ce3+(CO3)3F |
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Locality: Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Monteregie, Quebec, Canada Source: Donald Doell Owner: RRUFF Description: Radial sprays of white bladed crystals Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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)
|
Kuksite RRUFF ID: R110039 |
Ideal Chemistry: Pb2+3Zn2+3Te6+O6(PO4)2 |
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Locality: Blue Bell claims, Baker, San Bernardino County, California, USA Source: Brent Thorne Owner: RRUFF Description: Pale-green short-primatic hexagonal crystals, associated with colorless elongated tabular hemimorphite and yellow to brown-yellow andradite. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Dugganite (2) ] | ||||||||||
)
|
Kulanite RRUFF ID: R060240 |
Ideal Chemistry: BaFe2+2Al2(PO4)3(OH)3 |
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Locality: Big Fish River, Yukon Territory, Canada Source: Rock Currier Owner: RRUFF Description: Dark green tabular crystals Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Bjarebyite (5) ] | ||||||||||
)
|
Kunatite RRUFF ID: R120055 |
Ideal Chemistry: Cu2+Fe3+2(PO4)2(OH)2·4H2O |
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Locality: Krasno, Horni Slakov, Bohemia, Czech Republic Source: William W Pinch Owner: RRUFF Description: Spherical aggregates of pale green acicular crystals on quartz, associated with triplite Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Arthurite (7) ] | ||||||||||
)
|
Kupletskite RRUFF ID: R110176 |
Ideal Chemistry: K2NaMn2+7Ti4+2(Si4O12)2O2(OH)4F |
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Locality: Mont St-Hilaire, Quebec, Canada Source: Donald Doell Owner: RRUFF Description: Dark brown micaceous associated with orthoclase and aegirine Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Groups: [ astrophyllite (11) ] [ Kupletskite (2) ] | ||||||||||
)
|
Kupletskite-(Cs) RRUFF ID: R060929 |
Ideal Chemistry: Cs1+2NaMn2+7Ti4+2(Si4O12)2O2(OH)4F |
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Locality: Dara-i-Pioz, Garm region, Tajikistan Source: Michael Scott S100984 Owner: RRUFF Description: Brownish yellow foliated sample associated with white quartz and dark aegirine. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Groups: [ astrophyllite (11) ] [ Kupletskite (2) ] | ||||||||||
)
|
Kurchatovite RRUFF ID: R130074 |
Ideal Chemistry: CaMgB2O5 |
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|
Locality: Solongo B deposit, Vitim Plateau, Buriatia Republic, Transbaikalia, Eastern-Siberian Region, Russia Source: Igor Pekov Owner: RRUFF Description: Pale gray crystals with good cleavage, associated with white frolovite and yellow wurtzite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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)
|
Kurnakovite RRUFF ID: R050105 |
Ideal Chemistry: MgB3O3(OH)5·5H2O |
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Locality: Kramer deposit, Boron, Kern County, California, USA Source: Rock Currier Owner: RRUFF Description: Tabular single crystal Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Quick search: [ All Kurnakovite samples (2) ] | ||||||||||
)
|
Kurnakovite RRUFF ID: R050393 |
Ideal Chemistry: MgB3O3(OH)5·5H2O |
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Locality: Kramer deposit, Boron, Kern County, California, USA Source: Marcus Origlieri Owner: RRUFF Description: Colorless to gray cleavage fragment Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Quick search: [ All Kurnakovite samples (2) ] | ||||||||||
)
|
Kusachiite RRUFF ID: R220013 |
Ideal Chemistry: Cu2+Bi3+2O4 |
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|
Locality: Fuka mine, Takahashi City, Okayama Prefecture, Japan Source: Joan Rosell Riba Owner: Joan Rosell Riba Description: Globular aggregates of black, short prismatic crystals, associated with calcite and cahnite Status: The identification of this mineral has been determined by Raman spectroscopy and chemical analysis |
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| Mineral Group: [ Minium (6) ] | ||||||||||
)
|
Kushiroite RRUFF ID: R110134 |
Ideal Chemistry: CaAl(AlSi)O6 |
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Locality: Synthetic, at 1400 C, 20 kb, 24 hours, and 164 hours Source: Roberta Fleming RM010K/RM010H Owner: RRUFF Description: White pressed fragment Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ pyroxene (81) ] | ||||||||||
)
|
Kutnohorite RRUFF ID: R060473 |
Ideal Chemistry: CaMn2+(CO3)2 |
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Locality: N'Chwaning II mine, Kalahari manganese field, northern Cape Province, Republic of South Africa Source: Michael Scott S100370 Owner: RRUFF Description: Aggregate of parallel pink colored acicular crystals Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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)
|
Kuzmenkoite-Mn RRUFF ID: R070662 |
Ideal Chemistry: K4Mn2+2Ti4+8(Si4O12)4(OH,O)8·10-12H2O |
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Locality: Selsurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Source: Michael Scott S105784 Owner: RRUFF Description: Vitreous yellow prismatic crystals associated with natrolite and clinoenstatite. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ labuntsovite (11) ] | ||||||||||
)
|
Kyanite RRUFF ID: R040119 |
Ideal Chemistry: Al2OSiO4 |
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|
Locality: Rutherford County, North Carolina, USA Source: University of Arizona Mineral Museum 13215 Owner: RRUFF Description: Blue bladed crystal Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Not in a structural group (133) ] | ||||||||||
| Quick search: [ All Kyanite samples (4) ] | ||||||||||
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