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 | Aragonite | Calcite | Clay | Natrolite | None | Not in a structural group | Smectite-vermiculite |
Aragonite (*) | Calcite (*) | Montmorillonite (*) | Natrolite (*) | Offretite (*) |
Opal (*) |
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 |
---|---|---|---|---|---|---|---|
Aragonite (*) | Aragonite | Ca(CO3) | 1 | 59526 | 3250 | ||
Calcite (*) | Calcite | Ca(CO3) | 1 | 59526 | 27770 | ||
Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 1 | 59526 | 1508 | ||
Natrolite (*) | Natrolite | Na2(Si3Al2)O10·2H2O | 1 | 59526 | 1236 | ||
Offretite (*) | Not in a structural group | KCaMg(Si13Al5)O36·15H2O | 1 | 59526 | 146 | ||
Opal (*) | Amorphous | SiO2·nH2O | 1 | 59526 | 2994 |
Sample | Source Locality | Reference URL |
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All locality data graciously provided by mindat.org
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