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 | Kaolinite | Mica | None | Quartz | Smectite-vermiculite |
Hematite (*) | Kaolinite (*) | Montmorillonite (*) | Muscovite (*) | Quartz (*) |
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 | 228403 | 14640 | ||
Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 1 | 228403 | 5591 | ||
Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 1 | 228403 | 1508 | ||
Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 1 | 228403 | 17380 | ||
Quartz (*) | Quartz | SiO2 | 1 | 228403 | 61156 |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
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