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 | Cristobalite | Garnet | Gypsum | Mordenite | None | Rhodonite |
Cristobalite (*) | Gypsum (*) | Mordenite (*) | Opal (*) | Rhodonite (*) |
Spessartine (*) |
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 |
---|---|---|---|---|---|---|---|
Cristobalite (*) | Cristobalite | SiO2 | 1 | 161271 | 453 | ||
Gypsum (*) | Gypsum | Ca(SO4)·2H2O | 1 | 161269 | 6890 | ||
Mordenite (*) | Mordenite | (Na2,Ca,K2)4(Al8Si40)O96·28H2O | 1 | 161271 | 405 | ||
Opal (*) | Amorphous | SiO2·nH2O | 1 | 161271 | 2994 | ||
Rhodonite (*) | Rhodonite | CaMn3Mn(Si5O15) | 1 | 161273 | 969 | ||
Spessartine (*) | Garnet | Mn2+3Al2(SiO4)3 | 1 | 161274 | 1214 |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
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