| 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 | Corundum | None | Quartz | Rutile | Tourmaline |
| Actinolite (*) | Cassiterite (*) | Hematite (*) | Quartz (*) | Schorl (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Actinolite (*) | Amphibole | Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 1 | 4505 | 3419 | ||
| Cassiterite (*) | Rutile | SnO2 | 1 | 4505 | 5171 | ||
| Hematite (*) | Corundum | Fe2O3 | 1 | 4505 | 14640 | ||
| Quartz (*) | Quartz | SiO2 | 1 | 4505 | 61156 | ||
| Schorl (*) | Tourmaline | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | 1 | 4505 | 2705 |
All locality data graciously provided by mindat.org
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