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. |
Amphibole | Calcite | Garnet | Humite | None | Olivine | Rhodonite |
Alleghanyite (*) | Birnessite (*) | Grunerite (*) | Rhodochrosite (*) | Rhodonite (*) |
Spessartine (*) | Tephroite (*) |
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 |
---|---|---|---|---|---|---|---|
Alleghanyite (*) | Humite | Mn2+5(SiO4)2(OH)2 | 1 | 219527 | 77 | ||
Birnessite (*) | None | (Na,Ca,K)0.6(Mn4+,Mn3+)2O4·1.5H2O | 1 | 219527 | 178 | ||
Grunerite (*) | Amphibole | Fe2+2Fe2+5Si8O22(OH)2 | 2 | 219527,219528 | 223 | ||
Rhodochrosite (*) | Calcite | Mn(CO3) | 1 | 219527 | 1711 | ||
Rhodonite (*) | Rhodonite | CaMn3Mn(Si5O15) | 1 | 219527 | 969 | ||
Spessartine (*) | Garnet | Mn2+3Al2(SiO4)3 | 1 | 219527 | 1214 | ||
Tephroite (*) | Olivine | Mn2+2(SiO4) | 1 | 219527 | 240 |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
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