| 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. |
| Allophane | Amphibole | Aragonite | Calcite | Chloritoid | Clay | Corundum | Diaspore | Feldspar | Mica |
| None | Not in a structural group | Pyrophyllite | Rutile | Sapphirine | Spinel | Staurolite | Tourmaline |
| 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 |
|---|---|---|---|---|---|---|---|
| Anorthite (*) | Feldspar | Ca(Al2Si2O8) | 0 | 1036 | |||
| Aragonite (*) | Aragonite | Ca(CO3) | 0 | 3250 | |||
| Calcite (*) | Calcite | Ca(CO3) | 1 | 64432 | 27770 | ||
| Chloritoid (*) | Chloritoid | Fe2+Al2O(SiO4)(OH)2 | 0 | 376 | |||
| Chrysocolla (*) | Allophane | (Cu2-xAlx)H2-xSi2O5(OH)4·nH2O | 0 | 3531 | |||
| Corundum (*) | Corundum | Al2O3 | 2 | 64432,64434 | 1797 | ||
| Diaspore (*) | Diaspore | AlO(OH) | 0 | 481 | |||
| Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
| Kyanite (*) | Not in a structural group | Al2OSiO4 | 0 | 1507 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 2 | 64432,64434 | 14899 | ||
| Margarite (*) | Mica Clay | CaAl2Si2Al2O10(OH)2 | 0 | 168 | |||
| Pyrophyllite (*) | Clay Pyrophyllite | Al2Si4O10(OH)2 | 0 | 771 | |||
| Rutile (*) | Rutile | TiO2 | 0 | 5614 | |||
| Sapphirine (*) | Sapphirine | Mg4(Mg3Al9)O4[Si3Al9O36] | 0 | 129 | |||
| Schorl (*) | Tourmaline | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | 0 | 2705 | |||
| Siderite (*) | Calcite | Fe(CO3) | 0 | 6417 | |||
| Spinel (*) | Spinel | MgAl2O4 | 0 | 1934 | |||
| Staurolite (*) | Staurolite | Fe2+2Al9Si4O23(OH) | 0 | 978 | |||
| Tremolite (*) | Amphibole | Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 0 | 2562 |
All locality data graciously provided by mindat.org
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