| 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. |
| Apatite | Beryl | Chlorite | Clay | Gadolinite | None | Not in a structural group |
| Bertrandite (*) | Beryl (*) | Cookeite (*) | Fluorapatite (*) | Hydroxylherderite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Bertrandite (*) | Not in a structural group | Be4Si2O7(OH)2 | 0 | 606 | |||
| Beryl (*) | Beryl | Be3Al2Si6O18 | 0 | 4286 | |||
| Cookeite (*) | Chlorite Clay | (Al,Li)3Al2(Si,Al)4O10(OH)8 | 0 | 181 | |||
| Fluorapatite (*) | Apatite | Ca5(PO4)3F | 0 | 2740 | |||
| Hydroxylherderite (*) | Gadolinite | CaBe(PO4)(OH) | 0 | 119 |
All locality data graciously provided by mindat.org
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