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 | Aragonite | Brucite | Calcite | Chlorite | Clay | Corrensite | Corundum | Garnet | Hydrotalcite |
Millerite | None | Olivine | Pyrite | Pyroxene | Quartz | Serpentine | Spinel | Vesuvianite |
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 |
---|---|---|---|---|---|---|---|
Antigorite (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 708 | |||
Aragonite (*) | Aragonite | Ca(CO3) | 0 | 3250 | |||
Brucite (*) | Brucite | Mg(OH)2 | 0 | 462 | |||
Cacoxenite (*) | None | Fe3+24AlO6(PO4)17(OH)12·75H2O | 0 | 280 | |||
Calcite (*) | Calcite | Ca(CO3) | 0 | 27770 | |||
Chromite (*) | Spinel | Fe2+Cr2O4 | 0 | 3902 | |||
Chrysotile (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 951 | |||
Clinochlore (*) | Chlorite Clay | Mg5Al(AlSi3O10)(OH)8 | 0 | 1756 | |||
Dolomite (*) | None | CaMg(CO3)2 | 0 | 9895 | |||
Dozyite (*) | Corrensite Clay | Mg7Al2(Si4Al2)O15(OH)12 | 0 | 3 | |||
Enstatite (*) | Pyroxene | Mg2Si2O6 | 0 | 944 | |||
Forsterite (*) | Olivine | Mg2(SiO4) | 0 | 1188 | |||
Hematite (*) | Corundum | Fe2O3 | 0 | 14640 | |||
Hydromagnesite (*) | None | Mg5(CO3)4(OH)2·4H2O | 0 | 341 | |||
Ilmenite (*) | Corundum | Fe2+Ti4+O3 | 0 | 5433 | |||
Lizardite (*) | Serpentine Clay | Mg3Si2O5(OH)4 | 0 | 359 | |||
Magnesiochromite (*) | Spinel | MgCr2O4 | 0 | 311 | |||
Magnesite (*) | Calcite | Mg(CO3) | 0 | 1487 | |||
Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 0 | 14899 | |||
Maucherite (*) | None | Ni11As8 | 0 | 161 | |||
Millerite (*) | Millerite | NiS | 0 | 1066 | |||
Pyrite (*) | Pyrite | FeS2 | 0 | 39462 | |||
Pyroaurite (*) | Hydrotalcite | Mg6Fe3+2(CO3)(OH)16·4H2O | 0 | 89 | |||
Quartz (*) | Quartz | SiO2 | 0 | 61156 | |||
Uvarovite (*) | Garnet | Ca3Cr2(SiO4)3 | 0 | 212 | |||
Vesuvianite (*) | Vesuvianite | (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 0 | 1395 | |||
Zaratite (*) | Amorphous | Ni3(CO3)(OH)4·4H2O | 0 | 56 |
Sample | Source Locality | Reference URL |
---|---|---|
R070228 | Wood's Chrome Mine (Wood's Mine), Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA | https://rruff.info/R070228 |
R100040 | Wood's Chrome Mine (Wood's Mine), Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA | https://rruff.info/R100040 |
All locality data graciously provided by mindat.org
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