| 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 | Baryte | Braunite | Calcite | Clay | Corundum | Nolanite | None | Not in a structural group | Pyrite |
| Quartz | Rhodonite | Rocksalt | Rutile | 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 |
|---|---|---|---|---|---|---|---|
| Actinolite (*) | Amphibole | Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 0 | 3419 | |||
| Anhydrite (*) | Not in a structural group | Ca(SO4) | 0 | 1588 | |||
| Baryte (*) | Baryte | Ba(SO4) | 0 | 11547 | |||
| Braunite (*) | Braunite | Mn2+Mn3+6O8(SiO4) | 0 | 483 | |||
| Calcite (*) | Calcite | Ca(CO3) | 0 | 27770 | |||
| Ferrihydrite (*) | Nolanite | Fe3+10O14(OH)2 | 0 | 86 | |||
| Galena (*) | Rocksalt | PbS | 0 | 24243 | |||
| Hausmannite (*) | Spinel | Mn2+Mn3+2O4 | 0 | 350 | |||
| Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 0 | 1508 | |||
| Pyrite (*) | Pyrite | FeS2 | 0 | 39462 | |||
| Pyrolusite (*) | Rutile | MnO2 | 0 | 3106 | |||
| Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
| Rhodochrosite (*) | Calcite | Mn(CO3) | 0 | 1711 | |||
| Rhodonite (*) | Rhodonite | CaMn3Mn(Si5O15) | 0 | 969 | |||
| Siderite (*) | Calcite | Fe(CO3) | 0 | 6417 |
All locality data graciously provided by mindat.org
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