| 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 | Beryl | Calcite | Corundum | Garnet | None | Not in a structural group | Rhodonite | Spinel |
| Actinolite (*) | Almandine (*) | Anthophyllite (*) | Cordierite (*) | Cummingtonite (*) |
| Hematite (*) | Magnetite (*) | Rhodochrosite (*) | Rhodonite (*) | Sillimanite (*) |
| Spessartine (*) | 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 | |||
| Almandine (*) | Garnet | Fe2+3Al2(SiO4)3 | 0 | 2353 | |||
| Anthophyllite (*) | Amphibole | Mg2Mg5Si8O22(OH)2 | 0 | 718 | |||
| Cordierite (*) | Beryl | Mg2Al4Si5O18 | 0 | 1008 | |||
| Cummingtonite (*) | Amphibole | Mg2Mg5Si8O22(OH)2 | 0 | 327 | |||
| Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Rhodochrosite (*) | Calcite | Mn(CO3) | 0 | 1711 | |||
| Rhodonite (*) | Rhodonite | CaMn3Mn(Si5O15) | 0 | 969 | |||
| Sillimanite (*) | Not in a structural group | Al2SiO5 | 0 | 1516 | |||
| Spessartine (*) | Garnet | Mn2+3Al2(SiO4)3 | 0 | 1214 | |||
| Spinel (*) | Spinel | MgAl2O4 | 0 | 1934 |
| Sample | Source Locality | Reference URL |
|---|---|---|
All locality data graciously provided by mindat.org
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