| 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. |
| Amphibole | Chlorite | Clay | Corundum | Diaspore | Millerite | Nickeline | None | Pentlandite | Pyrite |
| Serpentine | Smectite-vermiculite | Spinel | Talc |
| Antigorite (*) | Chromite (*) | Clinochlore (*) | Goethite (*) | Hematite (*) |
| Ilmenite (*) | Magnetite (*) | Millerite (*) | Montmorillonite (*) | Pentlandite (*) |
| Pyrite (*) | Pyrrhotite (*) | Talc (*) | Tremolite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Antigorite (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 708 | |||
| Chromite (*) | Spinel | Fe2+Cr2O4 | 0 | 3902 | |||
| Clinochlore (*) | Chlorite Clay | Mg5Al(AlSi3O10)(OH)8 | 0 | 1756 | |||
| Goethite (*) | Diaspore | FeO(OH) | 0 | 7437 | |||
| Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
| Ilmenite (*) | Corundum | Fe2+Ti4+O3 | 0 | 5433 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Millerite (*) | Millerite | NiS | 0 | 1066 | |||
| Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 0 | 1508 | |||
| Pentlandite (*) | Pentlandite | (Ni,Fe)9S8 | 0 | 1512 | |||
| Pyrite (*) | Pyrite | FeS2 | 0 | 39462 | |||
| Pyrrhotite (*) | Nickeline | Fe7S8 | 0 | 9056 | |||
| Talc (*) | Clay Talc | Mg3Si4O10(OH)2 | 0 | 3337 | |||
| Tremolite (*) | Amphibole | Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 0 | 2562 |
All locality data graciously provided by mindat.org
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