| 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. |
| Andalusite | Beryl | Chlorite | Chloritoid | Clay | Mica | None | Not in a structural group | Olivine | Quartz |
| Serpentine | Spinel | Staurolite |
| Andalusite (*) | Berthierine (*) | Beryl (*) | Chamosite (*) | Chloritoid (*) |
| Chrysoberyl (*) | Cordierite (*) | Magnetite (*) | Muscovite (*) | Quartz (*) |
| Sillimanite (*) | Staurolite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Andalusite (*) | Andalusite | Al2SiO5 | 0 | 1310 | |||
| Berthierine (*) | Clay Serpentine | (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4 | 0 | 59 | |||
| Beryl (*) | Beryl | Be3Al2Si6O18 | 0 | 4286 | |||
| Chamosite (*) | Chlorite Clay | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 | 0 | 577 | |||
| Chloritoid (*) | Chloritoid | Fe2+Al2O(SiO4)(OH)2 | 0 | 376 | |||
| Chrysoberyl (*) | Olivine | BeAl2O4 | 0 | 321 | |||
| Cordierite (*) | Beryl | Mg2Al4Si5O18 | 0 | 1008 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 0 | 17380 | |||
| Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
| Sillimanite (*) | Not in a structural group | Al2SiO5 | 0 | 1516 | |||
| Staurolite (*) | Staurolite | Fe2+2Al9Si4O23(OH) | 0 | 978 |
All locality data graciously provided by mindat.org
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