| 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. |
| Beryl | Cancrinite-sodalite | Clay | Columbite | Corundum | Mica | Milarite | None | Not in a structural group | Sodalite |
| Spinel |
| Bavenite (*) | Bertrandite (*) | Beryl (*) | Bityite (*) | Helvine (*) |
| Ilmenite (*) | Magnetite (*) | Milarite (*) | Samarskite-(Y) (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Bavenite (*) | None | Ca4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1) | 0 | 255 | |||
| Bertrandite (*) | Not in a structural group | Be4Si2O7(OH)2 | 0 | 606 | |||
| Beryl (*) | Beryl | Be3Al2Si6O18 | 0 | 4286 | |||
| Bityite (*) | Mica Clay | CaLiAl2(Si2BeAl)O10(OH)2 | 0 | 31 | |||
| Helvine (*) | Sodalite Cancrinite-sodalite | Be3Mn2+4(SiO4)3S | 0 | 237 | |||
| Ilmenite (*) | Corundum | Fe2+Ti4+O3 | 0 | 5433 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Milarite (*) | Milarite | KCa2(Be2AlSi12)O30·H2O | 0 | 156 | |||
| Samarskite-(Y) (*) | Columbite | YFe3+Nb2O8 | 0 | 353 |
| Sample | Source Locality | Reference URL |
|---|---|---|
All locality data graciously provided by mindat.org
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