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. |
Allophane | Amphibole | Calcite | Chalcanthite | Chalcopyrite | Clay | Clinozoisite | Copper | Corundum | Covellite |
Diaspore | Epidote | Malachite | None | Not in a structural group | Pyrite | Quartz | Sphalerite | Spinel | Stannite |
Talc |
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 | 540 | 444 | 0 | 3419 | |
Arfvedsonite (*) | Amphibole | NaNa2(Fe2+4Fe3+)Si8O22(OH)2 | 540 | 444 | 0 | 295 | |
Azurite (*) | Not in a structural group | Cu3(CO3)2(OH)2 | 540 | 444 | 0 | 5509 | |
Bornite (*) | None | Cu5FeS4 | 540 | 444 | 1 | 218642 | 5516 |
Calcite (*) | Calcite | Ca(CO3) | 540 | 444 | 0 | 27770 | |
Carrollite (*) | Spinel | CuCo2S4 | 540 | 444 | 0 | 154 | |
Chalcanthite (*) | Chalcanthite | Cu(SO4)·5H2O | 540 | 444 | 0 | 925 | |
Chalcocite (*) | None | Cu2S | 540 | 444 | 0 | 5707 | |
Chalcopyrite (*) | Chalcopyrite | CuFeS2 | 540 | 444 | 0 | 27198 | |
Chromite (*) | Spinel | Fe2+Cr2O4 | 540 | 444 | 0 | 3902 | |
Chrysocolla (*) | Allophane | (Cu2-xAlx)H2-xSi2O5(OH)4·nH2O | 540 | 444 | 0 | 3531 | |
Covellite (*) | Covellite | CuS | 540 | 444 | 0 | 4165 | |
Epidote (*) | Epidote Clinozoisite | Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 540 | 444 | 0 | 8173 | |
Gahnite (*) | Spinel | ZnAl2O4 | 540 | 444 | 0 | 445 | |
Goethite (*) | Diaspore | FeO(OH) | 540 | 444 | 0 | 7437 | |
Gold (*) | Copper | Au | 540 | 444 | 0 | 30554 | |
Hematite (*) | Corundum | Fe2O3 | 540 | 444 | 0 | 14640 | |
Idaite (*) | Stannite Sphalerite | Cu3FeS4 | 540 | 444 | 0 | 142 | |
Linnaeite (*) | Spinel | Co2+Co3+2S4 | 540 | 444 | 0 | 249 | |
Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 540 | 444 | 1 | 218642 | 14899 |
Malachite (*) | Malachite | Cu2(CO3)(OH)2 | 540 | 444 | 1 | 218642 | 12537 |
Pyrite (*) | Pyrite | FeS2 | 540 | 444 | 0 | 39462 | |
Quartz (*) | Quartz | SiO2 | 540 | 444 | 1 | 218642 | 61156 |
Riebeckite (*) | Amphibole | Na2(Fe2+3Fe3+2)Si8O22(OH)2 | 540 | 444 | 0 | 375 | |
Siderite (*) | Calcite | Fe(CO3) | 540 | 444 | 0 | 6417 | |
Talc (*) | Clay Talc | Mg3Si4O10(OH)2 | 540 | 444 | 1 | 218642 | 3337 |
Excel ID | Max Age (Ma) | Min Age (Ma) | Age as listed in reference | Dating Method | Age Interpret | Prioritized? | Sample Source | Sample Num | Run Num | Age from other Locality | Dated Mineral | Minerals explicitely stated as having this age | Age applies to these Elements | MinDat Locality ID | Dated Locality (Max Age) | Location as listed in reference | Reference | Reference DOI | Reference ID | Age Notes | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Emily000556 | 540 | 444 | Cambrian-Ordovician | Yes | 24179 | Sykesville, Carroll Co., Maryland, USA | Sykesville | Rast and Horton (1989) | 10.1130/SPE228-p1 | GSA288_1 | |||||||||||
Emily000557 | 488 | 470 | 479±9 | zircon | Yes | Zircon | Zircon | 24179 | Sykesville, Carroll Co., Maryland, USA | Sykesville | Horton et al. (2010) | 10.1130/2010.1206(25) | GSA206_621 |
Sample | Source Locality | Reference URL |
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All locality data graciously provided by mindat.org
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