| 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. |
| Calcite | Epsomite | Gypsum | None | Not in a structural group |
| Anhydrite (*) | Epsomite (*) | Glauberite (*) | Gypsum (*) | Magnesite (*) |
| Polyhalite (*) | Thénardite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Anhydrite (*) | Not in a structural group | Ca(SO4) | 0 | 1588 | |||
| Epsomite (*) | Epsomite | Mg(SO4)·7H2O | 0 | 484 | |||
| Glauberite (*) | None | Na2Ca(SO4)2 | 0 | 137 | |||
| Gypsum (*) | Gypsum | Ca(SO4)·2H2O | 0 | 6890 | |||
| Magnesite (*) | Calcite | Mg(CO3) | 0 | 1487 | |||
| Polyhalite (*) | None | K2Ca2Mg(SO4)4·2H2O | 0 | 102 | |||
| Thénardite (*) | None | Na2(SO4) | 0 | 299 |
All locality data graciously provided by mindat.org
All age data...
Other copyright data...