| 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. |
| Baryte | Clay | Gypsum | None | Rocksalt | Smectite-vermiculite |
| Celestine (*) | Colemanite (*) | Dolomite (*) | Glauberite (*) | Gypsum (*) |
| Halite (*) | Hectorite (*) | Montmorillonite (*) | Ulexite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Celestine (*) | Baryte | Sr(SO4) | 1 | 235223 | 1252 | ||
| Colemanite (*) | None | CaB3O4(OH)3·H2O | 2 | 235223,235224 | 144 | ||
| Dolomite (*) | None | CaMg(CO3)2 | 1 | 235223 | 9895 | ||
| Glauberite (*) | None | Na2Ca(SO4)2 | 1 | 235225 | 137 | ||
| Gypsum (*) | Gypsum | Ca(SO4)·2H2O | 2 | 235223,235224 | 6890 | ||
| Halite (*) | Rocksalt | NaCl | 1 | 235223 | 1398 | ||
| Hectorite (*) | Clay | Na0.3(Mg,Li)3Si4O10(F,OH)2·nH2O | 1 | 235224 | 19 | ||
| Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 0 | 1508 | |||
| Ulexite (*) | None | NaCaB5O6(OH)6·5H2O | 1 | 235223 | 160 |
All locality data graciously provided by mindat.org
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