Keyite R050585

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Record 2121 of 4216  


Name: Keyite
RRUFF ID: R050585
Ideal Chemistry: (◻0.5Cu0.5)CuCdZn2(AsO4)3·H2O
Locality: Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia
Source: University of Arizona Mineral Museum 14754 [view label]
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.
Mineral Group: [ Alluaudite (22) ]
Quick search: [ All Keyite samples (2) ]
CHEMISTRY 
RRUFF ID: R050585.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Cu2+2.67Fe0.33)Σ=3Zn4.00(Cd1.65Fe0.14Pb0.11Mn0.06Ca0.04)Σ=2(As1.00O4)6·2H2O ; = lighter phase. The darker phase: Zn1.00(Cu0.91Fe0.09)Σ=1(As1.00O4)(OH) is zincolivenite
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050585
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R050585.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 11.74(5)Å    b: 12.92(6)Å    c: 6.89(2)Å
alpha: 90°    beta: 99.3(2)°    gamma: 90°   Volume: 1032(2)Å3    Crystal System: monoclinic
  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Keyite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Embrey P G, Fejer E E, Clark A M (1977) Keyite: a new mineral from Tsumeb, The Mineralogical Record, 8, 87-90   [view file]

Fleischer M, Cabri L J, Pabst A (1977) New mineral names, American Mineralogist, 62, 1259-1262   [view file]

Cooper M A, Hawthorne F C (1996) The crystal structure of keyite, Cu2+3(Zn,Cu2+)4Cd2(AsO4)6(H2O)2, an oxysalt mineral with essential cadium, The Canadian Mineralogist, 34, 623-630   [view file]

Jambor J L, Roberts A C (1997) New mineral names, American Mineralogist, 82, 207-210   [view file]

Schlüter J, Malcherek T, Mihailova B, Gebhard G (2013) The new mineral erikapohlite, Cu3(Zn,Cu,Mg)4Ca2(AsO4)6·2H2O, the Ca-dominant analogue of keyite, from Tsumeb, Namibia, Neues Jahrbuch für Mineralogie, Abhandlungen, 190, 319-325

Hatert F (2019) A new nomenclature scheme for the alluaudite supergroup, European Journal of Mineralogy, 31, 807-822   [view file]