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



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:
Lexington Mine, Walkerville, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA


mindat Locality ID: 6851
mindat URL: http://www.mindat.org/loc-6851.html

Tectonic Settings:

Total number of sublocalities beneath "Lexington Mine, Walkerville, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 46°1'41"N
Longitude: 112°32'3"W
Decimal Degree (lat, lon): 46.028055555556,-112.53416666667
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 As Au Be C Ca Cu Fe H K Mg Mn Mo O Pb S Sb Si Sn Ti Zn Zr 

Elements from minerals reported directly at this locality: Ag Al As Au Be C Ca Cu Fe H K Mg Mn Mo O Pb S Sb Si Sn Ti Zn Zr 

Structural Groups for minerals in this locality: 
AcanthiteArgyroditeCalciteCancrinite-sodaliteChalcopyriteClayClinozoisiteCopperEpidoteMarcasite
MicaMolybdeniteNonePolybasitePyriteQuartzRhodoniteRocksaltSodaliteSphalerite
TitaniteZircon

23 IMA Minerals at location:
Acanthite  (*)Calcite  (*)Canfieldite  (*)Chalcopyrite  (*)Dolomite  (*)
Epidote  (*)Galena  (*)Gold  (*)Helvine  (*)Marcasite  (*)
Molybdenite  (*)Muscovite  (*)Pearceite  (*)Pyrargyrite  (*)Pyrite  (*)
Quartz  (*)Rhodochrosite  (*)Rhodonite  (*)Siderite  (*)Silver  (*)
Sphalerite  (*)Titanite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S02793
Calcite  (*)CalciteCa(CO3)027770
Canfieldite  (*)ArgyroditeAg8SnS6091
Chalcopyrite  (*)ChalcopyriteCuFeS2027198
Dolomite  (*)NoneCaMg(CO3)209895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)08173
Galena  (*)RocksaltPbS024243
Gold  (*)CopperAu030554
Helvine  (*)Sodalite Cancrinite-sodaliteBe3Mn2+4(SiO4)3S0237
Marcasite  (*)MarcasiteFeS205674
Molybdenite  (*)MolybdeniteMoS205800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2017380
Pearceite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]0249
Pyrargyrite  (*)NoneAg3SbS301425
Pyrite  (*)PyriteFeS2039462
Quartz  (*)QuartzSiO2061156
Rhodochrosite  (*)CalciteMn(CO3)01711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)0969
Siderite  (*)CalciteFe(CO3)06417
Silver  (*)CopperAg05186
Sphalerite  (*)SphaleriteZnS021482
Titanite  (*)TitaniteCaTi(SiO4)O04899
Zircon  (*)ZirconZr(SiO4)05251


No ages have been assigned to this locality yet.
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