| 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. |
| Alum | Alunite | Amorphous | Clay | Cristobalite | Gypsum | Kaolinite | Ludwigite | Metavoltine | None |
| Not in a structural group | Sulphur |
| Alum-(K) (*) | Alunite (*) | Anhydrite (*) | Cristobalite (*) | Gypsum (*) |
| Jarosite (*) | Kaolinite (*) | Metavoltine (*) | Opal (*) | Sulphur (*) |
| Vonsenite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Alum-(K) (*) | Alum | KAl(SO4)2·12H2O | 2 | 71797,71800 | 92 | ||
| Alunite (*) | None | KAl3(SO4)2(OH)6 | 3 | 71797,71798,71800 | 966 | ||
| Anhydrite (*) | Not in a structural group | Ca(SO4) | 3 | 71797,71798,71800 | 1588 | ||
| Cristobalite (*) | Cristobalite | SiO2 | 0 | 453 | |||
| Gypsum (*) | Gypsum | Ca(SO4)·2H2O | 3 | 71797,71798,71800 | 6890 | ||
| Jarosite (*) | Alunite | KFe3+3(SO4)2(OH)6 | 3 | 71797,71798,71800 | 2228 | ||
| Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 3 | 71797,71798,71800 | 5591 | ||
| Metavoltine (*) | Metavoltine | K2Na6Fe2+Fe3+6O2(SO4)12·18H2O | 2 | 71797,71800 | 78 | ||
| Opal (*) | Amorphous | SiO2·nH2O | 2 | 71797,71800 | 2994 | ||
| Sulphur (*) | Sulphur | S | 2 | 71797,71800 | 2045 | ||
| Vonsenite (*) | Ludwigite | Fe2+2Fe3+O2(BO3) | 1 | 71795 | 62 |
All locality data graciously provided by mindat.org
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