| 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 | Amphibole | Calcite | Chlorite | Clay | Corundum | Diaspore | None | Pyroxene | Quartz |
| Serpentine | Smectite-vermiculite | Spinel | Talc |
| Anthophyllite (*) | Antigorite (*) | Chromite (*) | Chrysotile (*) | Enstatite (*) |
| Goethite (*) | Hematite (*) | Magnesite (*) | Népouite (*) | Nimite (*) |
| Opal (*) | Quartz (*) | Saponite (*) | Stevensite (*) | Talc (*) |
| Tremolite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Anthophyllite (*) | Amphibole | Mg2Mg5Si8O22(OH)2 | 0 | 718 | |||
| Antigorite (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 708 | |||
| Chromite (*) | Spinel | Fe2+Cr2O4 | 0 | 3902 | |||
| Chrysotile (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 951 | |||
| Enstatite (*) | Pyroxene | Mg2Si2O6 | 0 | 944 | |||
| Goethite (*) | Diaspore | FeO(OH) | 0 | 7437 | |||
| Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
| Magnesite (*) | Calcite | Mg(CO3) | 0 | 1487 | |||
| Népouite (*) | Serpentine Clay | Ni3Si2O5(OH)4 | 0 | 66 | |||
| Nimite (*) | Chlorite Clay | (Ni,Mg,Al)6(Si,Al)4O10(OH)8 | 0 | 15 | |||
| Opal (*) | Amorphous | SiO2·nH2O | 0 | 2994 | |||
| Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
| Saponite (*) | Clay Smectite-vermiculite | (Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O | 0 | 301 | |||
| Stevensite (*) | Clay | (Ca,Na)xMg3-ySi4O10(OH)2 | 0 | 57 | |||
| Talc (*) | Clay Talc | Mg3Si4O10(OH)2 | 0 | 3337 | |||
| Tremolite (*) | Amphibole | Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 0 | 2562 |
| Sample | Source Locality | Reference URL |
|---|---|---|
All locality data graciously provided by mindat.org
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