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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Gem State Mine, Hunter Mining District, Shoshone County, Idaho, USAi
Regional Level Types
Gem State MineMine
Hunter Mining DistrictMining District
Shoshone CountyCounty
IdahoState
USACountry

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Latitude & Longitude (WGS84):
47° 27' 51'' North , 115° 50' 50'' West
Latitude & Longitude (decimal):
47.46427,-115.84742
GRN:
N32W57
Type:
Mine
Köppen climate type:
Dsb : Warm, dry-summer continental climate
Nearest Settlements:
PlacePopulationDistance
Mullan675 (2017)3.5km
Wallace761 (2017)6.1km
Osburn1,510 (2017)12.3km
Kellogg2,069 (2017)22.0km
Wardner186 (2017)22.5km
Mindat Locality ID:
45794
Long-form identifier:
mindat:1:2:45794:6
GUID (UUID V4):
0


Located between Rock Creek and St. Joe Creek on the south slope of the South Fork Couer d'Alene River approximately 2.1 miles (3.4 kilometers) west of Mullan, Idaho.
Commodities (Major): Lead, Zinc, Silver
Development Status: Past Producer
Host Rock Unit(s): St. Regis Formation
Host Rock(s): Argillite, Quartzite
Structure(s): Gold Creek Anticline, Local Faulting (probably associated with the Osburn Fault and Tornado Faults)
Alteration(s): Unknown
Deposit Type(s): Vein
Tectonic Structure: Belt Basin
Other Information:
Located along the south side of the South Fork of the Coeur d' Alene River approximately 2.1 miles (3.4 kilometers) west of Mullan, Idaho.
Commodities (Major) - Silver, Lead, Zinc
Development Status: Past Producer
Host Rock Unit: Burke Formation
Host Rock: Argillite, Quartzite
Deposit Type: Vein
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


5 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ MagnetiteFe2+Fe23+O4
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
AlAluminium
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SSulfur
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
ZnZinc
Znⓘ SphaleriteZnS

Other Databases

Link to USGS MRDS:10078480
Link to USGS MRDS:10120887

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

idahogeomap.nkn.uidaho.edu (n.d.) https://idahogeomap.nkn.uidaho.edu/webmap/WebData/Mines.asp?Operation=Details&IDs=WL0431
Umpelby J.B., Jone E.L., Jr, (1923), Geology and ore deposits of Shoshone County, Idaho, USGS Survey Bulletin 732, 156 p.
Hobbs, S. Warren; Griggs, Allan B.; Wallace, Robert E.; Campbell, Arthur B. (1965) Geology of the Coeur d'Alene district, Shoshone County, Idaho. Professional Paper 478. US Geological Survey 139 pp. doi:10.3133/pp478 (Plate 4)
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