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 | Diaspore | Kaolinite | Lepidocrocite | Mica | None | Serpentine | Smectite-vermiculite |
Berthierine (*) | Goethite (*) | Kaolinite (*) | Lepidocrocite (*) | Muscovite (*) |
Vermiculite (*) |
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 |
---|---|---|---|---|---|---|---|
Berthierine (*) | Clay Serpentine | (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4 | 0 | 59 | |||
Goethite (*) | Diaspore | FeO(OH) | 0 | 7437 | |||
Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 0 | 5591 | |||
Lepidocrocite (*) | Lepidocrocite | Fe3+O(OH) | 0 | 581 | |||
Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 0 | 17380 | |||
Vermiculite (*) | Clay Smectite-vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O | 0 | 652 |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
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