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 | Smectite-vermiculite | Spinel | Talc |
Chromite (*) | Talc (*) | 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 |
---|---|---|---|---|---|---|---|
Chromite (*) | Spinel | Fe2+Cr2O4 | 0 | 3902 | |||
Talc (*) | Clay Talc | Mg3Si4O10(OH)2 | 0 | 3337 | |||
Vermiculite (*) | Clay Smectite-vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O | 0 | 652 |
Sample | Source Locality | Reference URL |
---|---|---|
X050070 | Webster Peridotite Deposit (Webster Chromite Prospects; Webster Deposit), Webster-Balsam, Jackson Co., North Carolina, USA | https://rruff.info/X050070 |
All locality data graciously provided by mindat.org
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