| 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. |
| Analcime | Eudialyte | None | Tridymite | Wöhlerite |
| Analcime (*) | Eudialyte (*) | Låvenite (*) | Nepheline (*) |
| 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 |
|---|---|---|---|---|---|---|---|
| Analcime (*) | Analcime | Na(AlSi2O6)·H2O | 0 | 1627 | |||
| Eudialyte (*) | Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 | 0 | 182 | |||
| Låvenite (*) | Wöhlerite | (Na,Ca)4(Mn2+,Fe2+)2(Zr,Ti,Nb)2(Si2O7)2(O,F)4 | 0 | 58 | |||
| Nepheline (*) | Tridymite | Na3K(Al4Si4O16) | 0 | 884 |
All locality data graciously provided by mindat.org
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