Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

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The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Iron Mountain, Custer Co., South Dakota, USA


mindat Locality ID: 284753
mindat URL: http://www.mindat.org/loc-284753.html

Tectonic Settings:

Total number of sublocalities beneath "Iron Mountain, Custer Co., South Dakota, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Amphibolite
Asbestos Locality
Spokane Mine

Latitude: 43°50'24"N
Longitude: 103°22'35"W
Decimal Degree (lat, lon): 43.84,-103.37638888889

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe 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.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al C Ca Cl Cu Fe H Mg Mo O P Pb S Sb Si Ti V Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteAmphiboleApatiteAragoniteBaryteChalcopyriteCopperCorundumEpidoteNone
PyriteQuartzRocksaltScheeliteSphaleriteSpinelTitanite

18 IMA Minerals at location:
Acanthite  (*)Actinolite  (*)Anglesite  (*)Cerussite  (*)Chalcopyrite  (*)
Galena  (*)Ilmenite  (*)Magnetite  (*)Pyrargyrite  (*)Pyrite  (*)
Pyromorphite  (*)Quartz  (*)Silver  (*)Sphalerite  (*)Titanite  (*)
Vanadinite  (*)Wulfenite  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S12650542793
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)212650533419
Anglesite  (*)BarytePb(SO4)12650542734
Cerussite  (*)AragonitePb(CO3)12650544979
Chalcopyrite  (*)ChalcopyriteCuFeS2126505427198
Galena  (*)RocksaltPbS126505424243
Ilmenite  (*)CorundumFe2+Ti4+O312650525433
Magnetite  (*)SpinelFe2+Fe3+2O4126505214899
Pyrargyrite  (*)NoneAg3SbS312650541425
Pyrite  (*)PyriteFeS22265052,26505439462
Pyromorphite  (*)ApatitePb5(PO4)3Cl12650541725
Quartz  (*)QuartzSiO2126505461156
Silver  (*)CopperAg12650545186
Sphalerite  (*)SphaleriteZnS126505421482
Titanite  (*)TitaniteCaTi(SiO4)O12650524899
Vanadinite  (*)ApatitePb5(VO4)3Cl1265054605
Wulfenite  (*)ScheelitePbMoO412650541655
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)12650521025



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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