| 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. |
| Corundum | None | Not in a structural group |
| Corundum (*) | Graphite (*) | Sillimanite (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Corundum (*) | Corundum | Al2O3 | 618 | 606 | 3 | 77757,77758,77759 | 1797 |
| Graphite (*) | None | C | 1 | 77758 | 2812 | ||
| Sillimanite (*) | Not in a structural group | Al2SiO5 | 1 | 77758 | 1516 |
| Excel ID | Max Age (Ma) | Min Age (Ma) | Age as listed in reference | Dating Method | Age Interpret | Prioritized? | Sample Source | Sample Num | Run Num | Age from other Locality | Dated Mineral | Minerals explicitely stated as having this age | Age applies to these Elements | MinDat Locality ID | Dated Locality (Max Age) | Location as listed in reference | Reference | Reference DOI | Reference ID | Age Notes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jen_0001537 | 618 | 606 | 612 ± 6 | U-Pb | age of formation of protolith ruby | zircon | Zircon | 26484 | John Saul Mine (Rockland Mine), Tsavo West, Voi, Taita-Taveta County, Kenya | John Saul Mine | Giuliani et al. (2007) | GOGD37_23 |
All locality data graciously provided by mindat.org
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