| 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. |
| Amorphous | Epsomite | Millerite | None | Pentlandite | Pyrite | Spinel | Ullmannite |
| Chromite (*) | Hollingworthite (*) | Laurite (*) | Mackinawite (*) | Magnetite (*) |
| Millerite (*) | Morenosite (*) | Pentlandite (*) | Sperrylite (*) | Violarite (*) |
| Zaratite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Chromite (*) | Spinel | Fe2+Cr2O4 | 0 | 3902 | |||
| Hollingworthite (*) | Ullmannite | RhAsS | 0 | 119 | |||
| Laurite (*) | Pyrite | RuS2 | 0 | 226 | |||
| Mackinawite (*) | None | (Fe,Ni)1+xS (x = 0-0.07) | 0 | 451 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Millerite (*) | Millerite | NiS | 0 | 1066 | |||
| Morenosite (*) | Epsomite | Ni(SO4)·7H2O | 0 | 84 | |||
| Pentlandite (*) | Pentlandite | (Ni,Fe)9S8 | 0 | 1512 | |||
| Sperrylite (*) | Pyrite | PtAs2 | 0 | 337 | |||
| Violarite (*) | Spinel | FeNi2S4 | 0 | 380 | |||
| Zaratite (*) | Amorphous | Ni3(CO3)(OH)4·4H2O | 0 | 56 |
All locality data graciously provided by mindat.org
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