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. |
Clay | Corundum | Cristobalite | Mica | None | Olivine | Tridymite |
Cristobalite (*) | Fayalite (*) | Hematite (*) | Mullite (*) | Phlogopite (*) |
Tridymite (*) |
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 | 0 | 453 | |||
Fayalite (*) | Olivine | Fe2+2(SiO4) | 0 | 371 | |||
Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
Mullite (*) | None | Al4+2xSi2-2xO10-x (x ≈ 0.4) | 0 | 78 | |||
Phlogopite (*) | Mica Clay | KMg3(AlSi3O10)(OH)2 | 0 | 2273 | |||
Tridymite (*) | Tridymite | SiO2 | 0 | 458 |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
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