| 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 | Amorphous | Calcite | Corundum | Diaspore | None | Spinel |
| Allophane (*) | Calcite (*) | Dolomite (*) | Goethite (*) | Hematite (*) |
| Magnetite (*) | Opal (*) | Siderite (*) | Variscite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Allophane (*) | Allophane | Al2O3(SiO2)1.3-2.0·2.5-3.0H2O | 0 | 470 | |||
| Calcite (*) | Calcite | Ca(CO3) | 0 | 27770 | |||
| Dolomite (*) | None | CaMg(CO3)2 | 0 | 9895 | |||
| Goethite (*) | Diaspore | FeO(OH) | 0 | 7437 | |||
| Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
| Opal (*) | Amorphous | SiO2·nH2O | 0 | 2994 | |||
| Siderite (*) | Calcite | Fe(CO3) | 0 | 6417 | |||
| Variscite (*) | None | Al(PO4)·2H2O | 0 | 301 |
All locality data graciously provided by mindat.org
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