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 | None | Palygorskite | Quartz | Sepiolite | Smectite-vermiculite |
Montmorillonite (*) | Palygorskite (*) | Quartz (*) | Sepiolite (*) |
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 |
---|---|---|---|---|---|---|---|
Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 2 | 203192,203193 | 1508 | ||
Palygorskite (*) | Palygorskite Clay | (Mg,Al)2Si4O10(OH)·4H2O | 5 | 203188,203192,203193,203195,203199 | 306 | ||
Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
Sepiolite (*) | Sepiolite Clay | Mg4Si6O15(OH)2·6H2O | 3 | 203188,203195,203199 | 241 |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
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