| 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 | Aragonite | Brucite | Chlorite | Clay | Diaspore | Garnet | Hydrotalcite | None | Pentlandite |
| Serpentine | Spinel | Woodwardite |
| 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 |
|---|---|---|---|---|---|---|---|
| Aragonite (*) | Aragonite | Ca(CO3) | 0 | 3250 | |||
| Chromite (*) | Spinel | Fe2+Cr2O4 | 0 | 3902 | |||
| Chrysotile (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 951 | |||
| Clinochlore (*) | Chlorite Clay | Mg5Al(AlSi3O10)(OH)8 | 0 | 1756 | |||
| Dypingite (*) | None | Mg5(CO3)4(OH)2·5H2O | 0 | 50 | |||
| Goethite (*) | Diaspore | FeO(OH) | 0 | 7437 | |||
| Grossular (*) | Garnet | Ca3Al2(SiO4)3 | 0 | 1544 | |||
| Heazlewoodite (*) | None | Ni3S2 | 0 | 205 | |||
| Honessite (*) | Woodwardite Hydrotalcite | (Ni1-xFe3+x)(SO4)x/2(OH)2·nH2O (x < 0.5, n < 3x/2) | 0 | 25 | |||
| Hydrohonessite (*) | Woodwardite Hydrotalcite | (Ni1-xFe3+x)(SO4)x/2(OH)2·nH2O (x < 0.5, n > 3x/2) | 0 | 12 | |||
| Nakauriite (*) | None | Cu8(SO4)4(CO3)(OH)6·48H2O | 0 | 12 | |||
| Pentlandite (*) | Pentlandite | (Ni,Fe)9S8 | 0 | 1512 | |||
| Reevesite (*) | Hydrotalcite | Ni6Fe3+2(CO3)(OH)16·4H2O | 0 | 48 | |||
| Theophrastite (*) | Brucite | Ni(OH)2 | 0 | 6 | |||
| Zaratite (*) | Amorphous | Ni3(CO3)(OH)4·4H2O | 0 | 56 |
All locality data graciously provided by mindat.org
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