| 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. |
| Chlorite | Clay | Coronadite | Lepidocrocite | None | Olivine | Quartz | Rhodonite |
| Birnessite (*) | Clinochlore (*) | Coronadite (*) | Cryptomelane (*) | Hollandite (*) |
| Lepidocrocite (*) | Pyroxmangite (*) | Quartz (*) | Rhodonite (*) | 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 |
|---|---|---|---|---|---|---|---|
| Birnessite (*) | None | (Na,Ca,K)0.6(Mn4+,Mn3+)2O4·1.5H2O | 0 | 178 | |||
| Clinochlore (*) | Chlorite Clay | Mg5Al(AlSi3O10)(OH)8 | 0 | 1756 | |||
| Coronadite (*) | Coronadite | Pb(Mn4+6Mn3+2)O16 | 0 | 227 | |||
| Cryptomelane (*) | Coronadite | K(Mn4+7Mn3+)O16 | 0 | 599 | |||
| Hollandite (*) | Coronadite | Ba(Mn4+6Mn3+2)O16 | 0 | 243 | |||
| Lepidocrocite (*) | Lepidocrocite | Fe3+O(OH) | 0 | 581 | |||
| Pyroxmangite (*) | None | Mn2+SiO3 | 0 | 147 | |||
| Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
| Rhodonite (*) | Rhodonite | CaMn3Mn(Si5O15) | 0 | 969 | |||
| Tephroite (*) | Olivine | Mn2+2(SiO4) | 0 | 240 |
All locality data graciously provided by mindat.org
All age data...
Other copyright data...