| 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. |
| Carnallite | Chalcanthite | Hexahydrite | Kieserite | None | Rhabdophane | Starkeyite |
| 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 |
|---|---|---|---|---|---|---|---|
| Bassanite (*) | Rhabdophane | Ca(SO4)·0.5H2O | 0 | 82 | |||
| Burkeite (*) | None | Na4(SO4)(CO3) | 0 | 47 | |||
| Carnallite (*) | Carnallite | KMgCl3·6H2O | 0 | 132 | |||
| Gaylussite (*) | None | Na2Ca(CO3)2·5H2O | 0 | 57 | |||
| Glauberite (*) | None | Na2Ca(SO4)2 | 0 | 137 | |||
| Hexahydrite (*) | Hexahydrite | Mg(SO4)·6H2O | 0 | 251 | |||
| Kainite (*) | None | KMg(SO4)Cl·2.75H2O | 0 | 50 | |||
| Mirabilite (*) | None | Na2(SO4)·10H2O | 0 | 223 | |||
| Nahcolite (*) | None | NaH(CO3) | 0 | 78 | |||
| Pentahydrite (*) | Chalcanthite | Mg(SO4)·5H2O | 0 | 32 | |||
| Pirssonite (*) | None | Na2Ca(CO3)2·2H2O | 0 | 19 | |||
| Polyhalite (*) | None | K2Ca2Mg(SO4)4·2H2O | 0 | 102 | |||
| Rozenite (*) | Starkeyite | Fe2+(SO4)·4H2O | 0 | 293 | |||
| Starkeyite (*) | Starkeyite | Mg(SO4)·4H2O | 0 | 79 | |||
| Szomolnokite (*) | Kieserite | Fe(SO4)·H2O | 0 | 139 | |||
| Trona (*) | None | Na3(HCO3)(CO3)·2H2O | 0 | 129 |
All locality data graciously provided by mindat.org
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