| 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. |
| Coronadite | Epsomite | Halotrichite | Hexahydrite | None | Not in a structural group | Pyrite | Tamarugite |
| Alunogen (*) | Epsomite (*) | Halotrichite (*) | Hexahydrite (*) | Pickeringite (*) |
| Pyrite (*) | Redingtonite (*) | Schwertmannite (*) | Sideronatrite (*) | Tamarugite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Alunogen (*) | Not in a structural group | Al2(SO4)3(H2O)12·5H2O | 0 | 272 | |||
| Epsomite (*) | Epsomite | Mg(SO4)·7H2O | 0 | 484 | |||
| Halotrichite (*) | Halotrichite | Fe2+Al2(SO4)4·22H2O | 0 | 409 | |||
| Hexahydrite (*) | Hexahydrite | Mg(SO4)·6H2O | 0 | 251 | |||
| Pickeringite (*) | Halotrichite | MgAl2(SO4)4·22H2O | 0 | 265 | |||
| Pyrite (*) | Pyrite | FeS2 | 0 | 39462 | |||
| Redingtonite (*) | Halotrichite | Fe2+Cr2(SO4)4·22H2O | 0 | 2 | |||
| Schwertmannite (*) | Coronadite | Fe3+16O16(OH)9.6(SO4)3.2·10H2O | 0 | 37 | |||
| Sideronatrite (*) | None | Na2Fe3+(SO4)2(OH)·3H2O | 0 | 73 | |||
| Tamarugite (*) | Tamarugite | NaAl(SO4)2·6H2O | 0 | 87 |
All locality data graciously provided by mindat.org
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