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 | Corundum | None | Spinel | Tridymite |
Hematite (*) | Magnesio-ferri-fluoro-hornblende (*) | Magnetite (*) | Todorokite (*) | 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 |
---|---|---|---|---|---|---|---|
Hematite (*) | Corundum | Fe2O3 | 1 | 71346 | 14640 | ||
Magnesio-ferri-fluoro-hornblende (*) | Amphibole | Ca2(Mg4Fe3+)(Si7Al)O22F2 | 1 | 71346 | 1 | ||
Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 1 | 71346 | 14899 | ||
Todorokite (*) | None | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O | 1 | 71346 | 433 | ||
Tridymite (*) | Tridymite | SiO2 | 1 | 71346 | 458 |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
All age data...
Other copyright data...