| 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 | Clay | Ilvaite | None | Quartz | Spinel | Stilpnomelane |
| Deerite (*) | Ilvaite (*) | Magnetite (*) | Quartz (*) | Riebeckite (*) |
| Stilpnomelane (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Deerite (*) | None | Fe2+6Fe3+3(Si6O17)O3(OH)5 | 0 | 27 | |||
| Ilvaite (*) | Ilvaite | CaFe3+Fe2+2O(Si2O7)(OH) | 0 | 197 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
| Riebeckite (*) | Amphibole | Na2(Fe2+3Fe3+2)Si8O22(OH)2 | 0 | 375 | |||
| Stilpnomelane (*) | Stilpnomelane Clay | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O | 0 | 456 |
All locality data graciously provided by mindat.org
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