A | This mineral is Anthropogenic. |
G | This mineral is directly dated. |
B | This mineral is reported as having this age. |
Y | This mineral is using an age reported as an element mineralization period. |
O | This mineral is using an age calculated from all data at the locality. |
R | The age displayed for this mineral originates from a different, non-child locality. |
P | The age displayed for this mineral is the range of ages for this mineral at all of this locality's children. |
This mineral's age has not yet been recorded. |
Mineral name | Structural Groups | IMA Formula | Max Age (Ma) | Min Age (Ma) | # of Sublocalities containing mineral | LOCALITY IDs, not mindat ids | # of localities containing mineral |
---|---|---|---|---|---|---|---|
Actinolite (*) | Amphibole | Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 1 | 249121 | 3419 | ||
Alabandite (*) | Rocksalt | MnS | 1 | 249121 | 312 | ||
Albite (*) | Feldspar | Na(AlSi3O8) | 1 | 249121 | 8803 | ||
Alleghanyite (*) | Humite | Mn2+5(SiO4)2(OH)2 | 1 | 249121 | 77 | ||
Almandine (*) | Garnet | Fe2+3Al2(SiO4)3 | 1 | 249108 | 2353 | ||
Andradite (*) | Garnet | Ca3Fe3+2(SiO4)3 | 1 | 249121 | 1534 | ||
Anglesite (*) | Baryte | Pb(SO4) | 1 | 249131 | 2734 | ||
Anthophyllite (*) | Amphibole | Mg2Mg5Si8O22(OH)2 | 1 | 249121 | 718 | ||
Baryte (*) | Baryte | Ba(SO4) | 1 | 249140 | 11547 | ||
Bementite (*) | Clay | Mn7Si6O15(OH)8 | 1 | 249121 | 173 | ||
Bornite (*) | None | Cu5FeS4 | 1 | 249140 | 5516 | ||
Calcite (*) | Calcite | Ca(CO3) | 2 | 249121,249140 | 27770 | ||
Caryopilite (*) | Clay Serpentine | Mn2+3Si2O5(OH)4 | 1 | 249121 | 83 | ||
Cattierite (*) | Pyrite | CoS2 | 1 | 249121 | 30 | ||
Chalcopyrite (*) | Chalcopyrite | CuFeS2 | 3 | 249121,249131,249140 | 27198 | ||
Clino-suenoite (*) | Amphibole | Mn2+2Mg5Si8O22(OH)2 | 2 | 249121 | 57 | ||
Cobaltite (*) | Cobaltite | CoAsS | 1 | 249121 | 966 | ||
Cummingtonite (*) | Amphibole | Mg2Mg5Si8O22(OH)2 | 1 | 249121 | 327 | ||
Cuprite (*) | Not in a structural group | Cu2O | 2 | 249131,249140 | 2970 | ||
Fluorapatite (*) | Apatite | Ca5(PO4)3F | 1 | 249121 | 2740 | ||
Gahnite (*) | Spinel | ZnAl2O4 | 1 | 249123 | 445 | ||
Galaxite (*) | Spinel | Mn2+Al2O4 | 1 | 249121 | 43 | ||
Galena (*) | Rocksalt | PbS | 2 | 249131,249140 | 24243 | ||
Gibbsite (*) | None | Al(OH)3 | 2 | 249111,249118 | 504 | ||
Glaucophane (*) | Amphibole | Na2(Mg3Al2)Si8O22(OH)2 | 0 | 286 | |||
Goethite (*) | Diaspore | FeO(OH) | 1 | 249123 | 7437 | ||
Gold (*) | Copper | Au | 0 | 30554 | |||
Graphite (*) | None | C | 0 | 2812 | |||
Grunerite (*) | Amphibole | Fe2+2Fe2+5Si8O22(OH)2 | 1 | 249121 | 223 | ||
Hematite (*) | Corundum | Fe2O3 | 3 | 249114,249115,249116 | 14640 | ||
Ilmenite (*) | Corundum | Fe2+Ti4+O3 | 1 | 249117 | 5433 | ||
Jacobsite (*) | Spinel | Mn2+Fe3+2O4 | 1 | 249121 | 172 | ||
Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 0 | 5591 | |||
Kellyite (*) | Clay Serpentine | (Mn2+,Mg,Al)3(Si,Al)2O5(OH)4 | 1 | 249121 | 11 | ||
Kutnohorite (*) | None | CaMn2+(CO3)2 | 1 | 249121 | 234 | ||
Kyanite (*) | Not in a structural group | Al2OSiO4 | 0 | 1507 | |||
Lawsonite (*) | Lawsonite | CaAl2(Si2O7)(OH)2·H2O | 0 | 121 | |||
Linnaeite (*) | Spinel | Co2+Co3+2S4 | 1 | 249121 | 249 | ||
Magnesio-hornblende (*) | Amphibole | Ca2(Mg4Al)(Si7Al)O22(OH)2 | 0 | 238 | |||
Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 7 | 249109,249113,249114,249115,249116,249117,249121 | 14899 | ||
Malachite (*) | Malachite | Cu2(CO3)(OH)2 | 2 | 249131,249140 | 12537 | ||
Manganhumite (*) | Humite | Mn2+7(SiO4)3(OH)2 | 1 | 249121 | 14 | ||
Margarite (*) | Mica Clay | CaAl2Si2Al2O10(OH)2 | 1 | 249121 | 168 | ||
Molybdenite (*) | Molybdenite | MoS2 | 2 | 249131,249140 | 5800 | ||
Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 1 | 249121 | 17380 | ||
Neotocite (*) | Allophane | (Mn,Fe)SiO3·H2O (?) | 1 | 249121 | 186 | ||
Pargasite (*) | Amphibole | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 | 0 | 313 | |||
Pennantite (*) | Chlorite Clay | Mn2+5Al(Si3Al)O10(OH)8 | 1 | 249121 | 25 | ||
Phlogopite (*) | Mica Clay | KMg3(AlSi3O10)(OH)2 | 1 | 249121 | 2273 | ||
Pseudomalachite (*) | None | Cu5(PO4)2(OH)4 | 1 | 249140 | 369 | ||
Pyrite (*) | Pyrite | FeS2 | 3 | 249121,249131,249140 | 39462 | ||
Pyrolusite (*) | Rutile | MnO2 | 1 | 249121 | 3106 | ||
Pyrophanite (*) | Corundum | Mn2+TiO3 | 1 | 249121 | 244 | ||
Pyroxmangite (*) | None | Mn2+SiO3 | 1 | 249121 | 147 | ||
Pyrrhotite (*) | Nickeline | Fe7S8 | 1 | 249121 | 9056 | ||
Quartz (*) | Quartz | SiO2 | 16 | 249121,249122,249124,249125,249126,249127,249128,249129,249130,249132,249133,249134,249135,249136,249137,249140 | 61156 | ||
Rhodochrosite (*) | Calcite | Mn(CO3) | 1 | 249121 | 1711 | ||
Rhodonite (*) | Rhodonite | CaMn3Mn(Si5O15) | 1 | 249121 | 969 | ||
Rutile (*) | Rutile | TiO2 | 1 | 249117 | 5614 | ||
Silver (*) | Copper | Ag | 1 | 249140 | 5186 | ||
Slawsonite (*) | None | Sr(Al2Si2O8) | 1 | 249120 | 12 | ||
Sonolite (*) | Humite | Mn2+9(SiO4)4(OH)2 | 1 | 249121 | 50 | ||
Spessartine (*) | Garnet | Mn2+3Al2(SiO4)3 | 1 | 249121 | 1214 | ||
Sphalerite (*) | Sphalerite | ZnS | 2 | 249131,249140 | 21482 | ||
Staurolite (*) | Staurolite | Fe2+2Al9Si4O23(OH) | 0 | 978 | |||
Stilpnomelane (*) | Stilpnomelane Clay | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O | 1 | 249121 | 456 | ||
Talc (*) | Clay Talc | Mg3Si4O10(OH)2 | 1 | 249113 | 3337 | ||
Tephroite (*) | Olivine | Mn2+2(SiO4) | 1 | 249121 | 240 | ||
Titanite (*) | Titanite | CaTi(SiO4)O | 0 | 4899 | |||
Tschermakite (*) | Amphibole | Ca2(Mg3Al2)(Si6Al2)O22(OH)2 | 0 | 73 | |||
Zoisite (*) | Epidote | Ca2Al3[Si2O7][SiO4]O(OH) | 0 | 1025 |
Sample | Source Locality | Reference URL |
---|---|---|
R060904 | Bald Knob, Sparta, Alleghany Co., North Carolina, USA | https://rruff.info/R060904 |
R140320 | Bald Knob, Sparta, Alleghany Co., North Carolina, USA | https://rruff.info/R140320 |
R060903 | Bald Knob, Sparta, Alleghany Co., North Carolina, USA | https://rruff.info/R060903 |
FKM-243 | Bald Knob Deposit (Primary Ore Body; Crouse Knob Deposit), Bald Knob, Sparta, Alleghany Co., North Carolina, USA | https://www.rockptx.com/fkm-226-to-fkm-250/#FKM-243 |
All locality data graciously provided by mindat.org
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