| 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. |
| Cancrinite-sodalite | Nickeline | None | Rhodonite | Sodalite |
| Helvine (*) | Pyrrhotite (*) | Rhodonite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Helvine (*) | Sodalite Cancrinite-sodalite | Be3Mn2+4(SiO4)3S | 0 | 237 | |||
| Pyrrhotite (*) | Nickeline | Fe7S8 | 0 | 9056 | |||
| Rhodonite (*) | Rhodonite | CaMn3Mn(Si5O15) | 0 | 969 |
All locality data graciously provided by mindat.org
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