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 | Clay | Cristobalite | Diaspore | Kaolinite | Mica | None | Pyrophyllite | Smectite-vermiculite | Tridymite |
Turquoise | Wavellite |
Alunite (*) | Chalcosiderite (*) | Cristobalite (*) | Diaspore (*) | Kaolinite (*) |
Montmorillonite (*) | Muscovite (*) | Opal (*) | Pyrophyllite (*) | Tridymite (*) |
Turquoise (*) | Wavellite (*) |
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 |
---|---|---|---|---|---|---|---|
Alunite (*) | None | KAl3(SO4)2(OH)6 | 0 | 966 | |||
Chalcosiderite (*) | Turquoise | CuFe3+6(PO4)4(OH)8·4H2O | 0 | 77 | |||
Cristobalite (*) | Cristobalite | SiO2 | 0 | 453 | |||
Diaspore (*) | Diaspore | AlO(OH) | 0 | 481 | |||
Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 0 | 5591 | |||
Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 0 | 1508 | |||
Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 0 | 17380 | |||
Opal (*) | Amorphous | SiO2·nH2O | 0 | 2994 | |||
Pyrophyllite (*) | Clay Pyrophyllite | Al2Si4O10(OH)2 | 0 | 771 | |||
Tridymite (*) | Tridymite | SiO2 | 0 | 458 | |||
Turquoise (*) | Turquoise | CuAl6(PO4)4(OH)8·4H2O | 0 | 484 | |||
Wavellite (*) | Wavellite | Al3(PO4)2(OH)3·5H2O | 0 | 374 |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
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