| 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 | Beryl | Clay | Corundum | Garnet | Kaolinite | Mica | None | Pyroxene | Quartz |
| Spinel | Titanite | Zircon |
| Actinolite (*) | Beryl (*) | Corundum (*) | Diopside (*) | Graphite (*) |
| Grossular (*) | Kaolinite (*) | Muscovite (*) | Pyrope (*) | Quartz (*) |
| Spinel (*) | Spodumene (*) | 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 | 0 | 3419 | |||
| Beryl (*) | Beryl | Be3Al2Si6O18 | 0 | 4286 | |||
| Corundum (*) | Corundum | Al2O3 | 0 | 1797 | |||
| Diopside (*) | Pyroxene | CaMgSi2O6 | 0 | 4135 | |||
| Graphite (*) | None | C | 0 | 2812 | |||
| Grossular (*) | Garnet | Ca3Al2(SiO4)3 | 0 | 1544 | |||
| Kaolinite (*) | Clay Kaolinite | Al2Si2O5(OH)4 | 0 | 5591 | |||
| Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 0 | 17380 | |||
| Pyrope (*) | Garnet | Mg3Al2(SiO4)3 | 0 | 341 | |||
| Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
| Spinel (*) | Spinel | MgAl2O4 | 0 | 1934 | |||
| Spodumene (*) | Pyroxene | LiAlSi2O6 | 0 | 688 | |||
| Titanite (*) | Titanite | CaTi(SiO4)O | 0 | 4899 | |||
| Zircon (*) | Zircon | Zr(SiO4) | 0 | 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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