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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Stemwinder Mine, Shoshone County, Idaho, USAi
Regional Level Types
Stemwinder MineMine
Shoshone CountyCounty
IdahoState
USACountry

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Latitude & Longitude (WGS84):
47° 30' 48'' North , 116° 8' 41'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Wardner186 (2017)1.3km
Kellogg2,069 (2017)3.4km
Smelterville603 (2017)4.2km
Pinehurst1,580 (2017)7.5km
Osburn1,510 (2017)11.0km
Mindat Locality ID:
45682
Long-form identifier:
mindat:1:2:45682:2
GUID (UUID V4):
0
Other/historical names associated with this locality:
Bunker Hill; Stem Winder


Located in Milo Creek approximately 0.8 miles (1.3 kilometers) south-southwest of Wardner, Idaho
Commodities (Major): Gold, Lead, Silver; (Secondary): Zinc; (Tertiary): Antimony, Cadmium, Copper
Development Status: Past Producer
Host Rock Unit(s): St. Regis Formation, Revett Formation
Host Rock(s): Quartzite
Structure(s): Dull Fault, Cate Fault, Kruger Fault (Katherine Fault, Alhambra Fault, Buckeye Fault, and Grey Fault are nearby. The Osburn Fault is less than two miles to the north.)
Alteration(s): Sericitic alteration, Oxidation
Deposit Type(s): Veins, Tabs, Lenses, and Irregular Bodies
Tectonic Structure: Belt Basin

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


12 valid minerals.

Detailed Mineral List:

Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Arsenopyrite
Formula: FeAsS
Boulangerite
Formula: Pb5Sb4S11
Cerussite
Formula: PbCO3
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Galena
Formula: PbS
'Limonite'
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Pyrargyrite
Formula: Ag3SbS3
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Siderite
Formula: FeCO3
Sphalerite
Formula: ZnS
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Arsenopyrite2.EB.20FeAsS
Pyrargyrite2.GA.05Ag3SbS3
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Boulangerite2.HC.15Pb5Sb4S11
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Cerussite5.AB.15PbCO3
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
'Chlorite Group'-
'Limonite'-

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C CerussitePbCO3
C SideriteFeCO3
OOxygen
O AnkeriteCa(Fe2+,Mg)(CO3)2
O CerussitePbCO3
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O SideriteFeCO3
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
S ArsenopyriteFeAsS
S BoulangeritePb5Sb4S11
S ChalcopyriteCuFeS2
S GalenaPbS
S PyrargyriteAg3SbS3
S PyriteFeS2
S SphaleriteZnS
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
FeIron
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe SideriteFeCO3
CuCopper
Cu ChalcopyriteCuFeS2
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
AgSilver
Ag PyrargyriteAg3SbS3
SbAntimony
Sb BoulangeritePb5Sb4S11
Sb PyrargyriteAg3SbS3
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
PbLead
Pb BoulangeritePb5Sb4S11
Pb CerussitePbCO3
Pb GalenaPbS

Other Databases

Link to USGS MRDS:10169399
Link to USGS MRDS:10073370

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.

References

 
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