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:
Ramshorn Mine (Beardsley Mine; Excelsior), Ramshorn Mountain, Bay Horse District, Custer Co., Idaho, USA


mindat Locality ID: 45468
mindat URL: http://www.mindat.org/loc-45468.html

Tectonic Settings:

Total number of sublocalities beneath "Ramshorn Mine (Beardsley Mine; Excelsior), Ramshorn Mountain, Bay Horse District, Custer Co., Idaho, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 44°24'38"N
Longitude: 114°21'46"W
Decimal Degree (lat, lon): 44.410555555556,-114.36277777778
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 C Ca Cl Cu F Fe H Mo O Pb S Sb Si Zn 

Elements from minerals reported directly at this locality: Ag Al As C Ca Cl Cu F Fe H Mo O Pb S Sb Si Zn 

Structural Groups for minerals in this locality: 
AcanthiteAllophaneApatiteAragoniteArsenopyriteCalciteChalcopyriteCopperFluoriteLinarite
MalachiteMiniumMolybdeniteNoneNot in a structural groupPyritePyrochloreQuartzRocksaltScheelite
SphaleriteTetrahedrite

27 IMA Minerals at location:
Acanthite  (*)Arsenopyrite  (*)Azurite  (*)Bayldonite  (*)Bindheimite  (*)
Calcite  (*)Cerussite  (*)Chalcopyrite  (*)Chlorargyrite  (*)Chrysocolla  (*)
Cuprite  (*)Fluorite  (*)Galena  (*)Hemimorphite  (*)Linarite  (*)
Malachite  (*)Mimetite  (*)Minium  (*)Molybdenite  (*)Powellite  (*)
Pyrite  (*)Quartz  (*)Siderite  (*)Silver  (*)Smithsonite  (*)
Sphalerite  (*)Tetrahedrite-(Zn)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S02793
Arsenopyrite  (*)ArsenopyriteFeAsS09052
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)205509
Bayldonite  (*)NoneCu3PbO(AsO3OH)2(OH)20172
Bindheimite  (*)PyrochlorePb2Sb5+2O70450
Calcite  (*)CalciteCa(CO3)027770
Cerussite  (*)AragonitePb(CO3)04979
Chalcopyrite  (*)ChalcopyriteCuFeS2027198
Chlorargyrite  (*)RocksaltAgCl01382
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O03531
Cuprite  (*)Not in a structural groupCu2O02970
Fluorite  (*)FluoriteCaF209617
Galena  (*)RocksaltPbS024243
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O01689
Linarite  (*)LinariteCuPb(SO4)(OH)20987
Malachite  (*)MalachiteCu2(CO3)(OH)2012537
Mimetite  (*)ApatitePb5(AsO4)3Cl01107
Minium  (*)MiniumPb2+2Pb4+O40247
Molybdenite  (*)MolybdeniteMoS205800
Powellite  (*)ScheeliteCa(MoO4)0494
Pyrite  (*)PyriteFeS2039462
Quartz  (*)QuartzSiO2061156
Siderite  (*)CalciteFe(CO3)06417
Silver  (*)CopperAg05186
Smithsonite  (*)CalciteZn(CO3)02473
Sphalerite  (*)SphaleriteZnS021482
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1305317


No ages have been assigned to this locality yet.
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