Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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General Custer Mine (Lucky Boy Mine), Yankee Fork Mining District, Custer County, Idaho, USAi
Regional Level Types
General Custer Mine (Lucky Boy Mine)Mine
Yankee Fork Mining DistrictMining District
Custer CountyCounty
IdahoState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
44° North , 114° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~90km
Type:
Mindat Locality ID:
68964
Long-form identifier:
mindat:1:2:68964:2
GUID (UUID V4):
0


The General Custer Mine was located in 1976 by James Baxter, Elden Dodge and Morgan McKim. They named the vein in memory of General George A. Custer, a popular figure at the time. Speculation and litigation held up the development of the mine until 1879, when a group of San Francisco capitalists gained title to the claim and formed the Custer Mining Company. In 1880, the General Custer Mill was erected at the upper end of Custer. Milling 900 tons of ore a month, the mill produced close to $1,000,000 in gold and silver bullion from the Custer vein in its first year of operation. The property produced between five and eight million dollars before closing in 1888.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Baryte
Formula: BaSO4
Calcite
Formula: CaCO3
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Galena
Formula: PbS
'K Feldspar'
'K Feldspar var. Adularia'
Formula: KAlSi3O8
Native Gold
Formula: Au
Native Gold var. Electrum
Formula: (Au,Ag)
Native Silver
Formula: Ag
Polybasite
Formula: [Ag6Sb2S7][Ag9CuS4]
Proustite
Formula: Ag3AsS3
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Quartz var. Chalcedony
Formula: SiO2
Sphalerite
Formula: ZnS
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Gold
var. Electrum
1.AA.05(Au,Ag)
1.AA.05Au
Native Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Proustite2.GA.05Ag3AsS3
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Polybasite2.GB.15[Ag6Sb2S7][Ag9CuS4]
Group 4 - Oxides and Hydroxides
Quartz
var. Chalcedony
4.DA.05SiO2
4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Unclassified
'K Feldspar
var. Adularia'
-KAlSi3O8
'Chlorite Group'-
'K Feldspar'-

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
OOxygen
O K Feldspar var. AdulariaKAlSi3O8
O BaryteBaSO4
O CalciteCaCO3
O Quartz var. ChalcedonySiO2
O QuartzSiO2
AlAluminium
Al K Feldspar var. AdulariaKAlSi3O8
SiSilicon
Si K Feldspar var. AdulariaKAlSi3O8
Si Quartz var. ChalcedonySiO2
Si QuartzSiO2
SSulfur
S AcanthiteAg2S
S BaryteBaSO4
S ChalcopyriteCuFeS2
S GalenaPbS
S Polybasite[Ag6Sb2S7][Ag9CuS4]
S ProustiteAg3AsS3
S PyriteFeS2
S SphaleriteZnS
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
K K Feldspar var. AdulariaKAlSi3O8
CaCalcium
Ca CalciteCaCO3
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
Cu Polybasite[Ag6Sb2S7][Ag9CuS4]
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ProustiteAg3AsS3
AgSilver
Ag AcanthiteAg2S
Ag Native Gold var. Electrum(Au,Ag)
Ag Polybasite[Ag6Sb2S7][Ag9CuS4]
Ag ProustiteAg3AsS3
Ag Native SilverAg
SbAntimony
Sb Polybasite[Ag6Sb2S7][Ag9CuS4]
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
Ba BaryteBaSO4
AuGold
Au Native Gold var. Electrum(Au,Ag)
Au Native GoldAu
PbLead
Pb GalenaPbS

Other Regions, Features and Areas containing this locality


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

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