| 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 | Clay | Corundum | Garnet | Humite | Mica | None | Olivine |
| Quartz | Rhodonite | Rocksalt | 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 | |||
| Alabandite (*) | Rocksalt | MnS | 0 | 312 | |||
| Alleghanyite (*) | Humite | Mn2+5(SiO4)2(OH)2 | 0 | 77 | |||
| Graphite (*) | None | C | 0 | 2812 | |||
| Hausmannite (*) | Spinel | Mn2+Mn3+2O4 | 0 | 350 | |||
| Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 0 | 17380 | |||
| Neotocite (*) | Allophane | (Mn,Fe)SiO3·H2O (?) | 0 | 186 | |||
| Pyrophanite (*) | Corundum | Mn2+TiO3 | 0 | 244 | |||
| Pyroxmangite (*) | None | Mn2+SiO3 | 0 | 147 | |||
| Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
| Rhodochrosite (*) | Calcite | Mn(CO3) | 0 | 1711 | |||
| Rhodonite (*) | Rhodonite | CaMn3Mn(Si5O15) | 0 | 969 | |||
| Spessartine (*) | Garnet | Mn2+3Al2(SiO4)3 | 0 | 1214 | |||
| Tephroite (*) | Olivine | Mn2+2(SiO4) | 0 | 240 | |||
| 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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