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 | Aragonite | Beryl | Brucite | Chlorite | Clay | Corundum | None | Olivine | Quartz |
Smectite-vermiculite | Spinel | Talc | Tourmaline |
Aragonite (*) | Beryl (*) | Brucite (*) | Clinochlore (*) | Forsterite (*) |
Hydromagnesite (*) | Ilmenite (*) | Magnetite (*) | Quartz (*) | Schorl (*) |
Talc (*) | Tremolite (*) | Vermiculite (*) |
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 |
---|---|---|---|---|---|---|---|
Aragonite (*) | Aragonite | Ca(CO3) | 0 | 3250 | |||
Beryl (*) | Beryl | Be3Al2Si6O18 | 0 | 4286 | |||
Brucite (*) | Brucite | Mg(OH)2 | 0 | 462 | |||
Clinochlore (*) | Chlorite Clay | Mg5Al(AlSi3O10)(OH)8 | 0 | 1756 | |||
Forsterite (*) | Olivine | Mg2(SiO4) | 0 | 1188 | |||
Hydromagnesite (*) | None | Mg5(CO3)4(OH)2·4H2O | 0 | 341 | |||
Ilmenite (*) | Corundum | Fe2+Ti4+O3 | 0 | 5433 | |||
Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
Schorl (*) | Tourmaline | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | 0 | 2705 | |||
Talc (*) | Clay Talc | Mg3Si4O10(OH)2 | 0 | 3337 | |||
Tremolite (*) | Amphibole | Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 0 | 2562 | |||
Vermiculite (*) | Clay Smectite-vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O | 0 | 652 |
Sample | Source Locality | Reference URL |
---|---|---|
R040144 | Brinton's Quarry, West Chester, Westtown Township, Chester Co., Pennsylvania, USA | https://rruff.info/R040144 |
All locality data graciously provided by mindat.org
All age data...
Other copyright data...