| 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. |
| Amphibole | Humite | None | Spinel |
| Anthophyllite (*) | Clinohumite (*) | Graphite (*) | Spinel (*) |
| 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 | |||
| Clinohumite (*) | Humite | Mg9(SiO4)4F2 | 0 | 236 | |||
| Graphite (*) | None | C | 0 | 2812 | |||
| Spinel (*) | Spinel | MgAl2O4 | 0 | 1934 |
All locality data graciously provided by mindat.org
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