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 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 Mountain, Bay Horse District, Custer Co., Idaho, USA


mindat Locality ID: 239412
mindat URL: http://www.mindat.org/loc-239412.html

Tectonic Settings:

Total number of sublocalities beneath "Ramshorn Mountain, Bay Horse District, Custer Co., Idaho, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Ramshorn Mine (Beardsley Mine; Excelsior)
Skylark Mine
Toolie Prospect

Latitude: 44°24'47"N
Longitude: 114°21'50"W
Decimal Degree (lat, lon): 44.413055555556,-114.36388888889

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: 

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  (*)AcanthiteAg2S12068112793
Arsenopyrite  (*)ArsenopyriteFeAsS12068119052
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)22206811,2068125509
Bayldonite  (*)NoneCu3PbO(AsO3OH)2(OH)21206811172
Bindheimite  (*)PyrochlorePb2Sb5+2O72206811,206812450
Calcite  (*)CalciteCa(CO3)120681127770
Cerussite  (*)AragonitePb(CO3)12068114979
Chalcopyrite  (*)ChalcopyriteCuFeS2120681127198
Chlorargyrite  (*)RocksaltAgCl12068111382
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12068113531
Cuprite  (*)Not in a structural groupCu2O2206811,2068122970
Fluorite  (*)FluoriteCaF212068119617
Galena  (*)RocksaltPbS120681124243
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O12068111689
Linarite  (*)LinariteCuPb(SO4)(OH)21206811987
Malachite  (*)MalachiteCu2(CO3)(OH)2120681112537
Mimetite  (*)ApatitePb5(AsO4)3Cl12068111107
Minium  (*)MiniumPb2+2Pb4+O41206811247
Molybdenite  (*)MolybdeniteMoS212068115800
Powellite  (*)ScheeliteCa(MoO4)1206811494
Pyrite  (*)PyriteFeS2120681139462
Quartz  (*)QuartzSiO2120681161156
Siderite  (*)CalciteFe(CO3)12068116417
Silver  (*)CopperAg2206811,2068125186
Smithsonite  (*)CalciteZn(CO3)12068112473
Sphalerite  (*)SphaleriteZnS120681121482
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S132206811,2068125317



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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