| 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. |
| Amorphous | Aragonite | Calcite | Chalcopyrite | Clay | Corundum | Diaspore | Millerite | Nickeline | None |
| Pentlandite | Pyrite | Quartz | Serpentine | Smectite-vermiculite | Spinel |
| 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 |
|---|---|---|---|---|---|---|---|
| Aragonite (*) | Aragonite | Ca(CO3) | 0 | 3250 | |||
| Calcite (*) | Calcite | Ca(CO3) | 0 | 27770 | |||
| Chalcopyrite (*) | Chalcopyrite | CuFeS2 | 0 | 27198 | |||
| Chromite (*) | Spinel | Fe2+Cr2O4 | 0 | 3902 | |||
| Chrysotile (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 951 | |||
| Dolomite (*) | None | CaMg(CO3)2 | 0 | 9895 | |||
| Goethite (*) | Diaspore | FeO(OH) | 0 | 7437 | |||
| Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
| Hercynite (*) | Spinel | Fe2+Al2O4 | 0 | 407 | |||
| Ilmenite (*) | Corundum | Fe2+Ti4+O3 | 0 | 5433 | |||
| Lizardite (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 359 | |||
| Magnesite (*) | Calcite | Mg(CO3) | 0 | 1487 | |||
| Millerite (*) | Millerite | NiS | 0 | 1066 | |||
| Opal (*) | Amorphous | SiO2·nH2O | 0 | 2994 | |||
| Pentlandite (*) | Pentlandite | (Ni,Fe)9S8 | 0 | 1512 | |||
| Pyrite (*) | Pyrite | FeS2 | 0 | 39462 | |||
| Pyrrhotite (*) | Nickeline | Fe7S8 | 0 | 9056 | |||
| Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
| Saponite (*) | Clay Smectite-vermiculite | (Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O | 0 | 301 | |||
| Spinel (*) | Spinel | MgAl2O4 | 0 | 1934 |
All locality data graciously provided by mindat.org
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