| 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. |
| Amorphous | Amphibole | Beryl | Clay | Corundum | Garnet | Kaolinite | Mica | None | Not in a structural group |
| Olivine | Pyroxene | Quartz | Spinel | Titanite | Zircon |
| 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 |
|---|---|---|---|---|---|---|---|
| Actinolite (*) | Amphibole | Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 1 | 111011 | 3419 | ||
| Beryl (*) | Beryl | Be3Al2Si6O18 | 1 | 111011 | 4286 | ||
| Chrysoberyl (*) | Olivine | BeAl2O4 | 1 | 111012 | 321 | ||
| Corundum (*) | Corundum | Al2O3 | 5 | 111009,111011,111012,111013,111015 | 1797 | ||
| Diopside (*) | Pyroxene | CaMgSi2O6 | 1 | 111011 | 4135 | ||
| Ekanite (*) | Amorphous | Ca2ThSi8O20 | 1 | 111012 | 16 | ||
| Graphite (*) | None | C | 1 | 111011 | 2812 | ||
| Grossular (*) | Garnet | Ca3Al2(SiO4)3 | 2 | 111011,111012 | 1544 | ||
| Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 1 | 111011 | 5591 | ||
| Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 1 | 111011 | 17380 | ||
| Pyrope (*) | Garnet | Mg3Al2(SiO4)3 | 1 | 111011 | 341 | ||
| Quartz (*) | Quartz | SiO2 | 1 | 111011 | 61156 | ||
| Sillimanite (*) | Not in a structural group | Al2SiO5 | 1 | 111012 | 1516 | ||
| Spinel (*) | Spinel | MgAl2O4 | 4 | 111007,111008,111011,111012 | 1934 | ||
| Spodumene (*) | Pyroxene | LiAlSi2O6 | 1 | 111011 | 688 | ||
| Titanite (*) | Titanite | CaTi(SiO4)O | 1 | 111011 | 4899 | ||
| Zircon (*) | Zircon | Zr(SiO4) | 3 | 111011,111012,111014 | 5251 |
| Sample | Source Locality | Reference URL |
|---|---|---|
| R100160 | Kataragama (Katharagama; Katirkamam), Moneragala District, Uva Province, Sri Lanka | https://rruff.info/R100160 |
All locality data graciously provided by mindat.org
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