| 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 | Ettringite | Garnet | Gismondine | Nickeline | None | Olivine | Spinel | Titanite |
| Ettringite (*) | Gismondine (*) | Grossular (*) | Magnetite (*) | Monticellite (*) |
| Opal (*) | Pyrrhotite (*) | Thaumasite (*) | Titanite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Ettringite (*) | Ettringite | Ca6Al2(SO4)3(OH)12·27H2O | 0 | 93 | |||
| Gismondine (*) | Gismondine | Ca2(Si4Al4)O16·8H2O | 0 | 128 | |||
| Grossular (*) | Garnet | Ca3Al2(SiO4)3 | 0 | 1544 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Monticellite (*) | Olivine | CaMg(SiO4) | 0 | 153 | |||
| Opal (*) | Amorphous | SiO2·nH2O | 0 | 2994 | |||
| Pyrrhotite (*) | Nickeline | Fe7S8 | 0 | 9056 | |||
| Thaumasite (*) | Ettringite | Ca3Si(OH)6(CO3)(SO4)·12H2O | 0 | 183 | |||
| Titanite (*) | Titanite | CaTi(SiO4)O | 0 | 4899 |
All locality data graciously provided by mindat.org
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