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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Rex Mine, Placer Center Mining District, Shoshone County, Idaho, USAi
Regional Level Types
Rex MineMine
Placer Center Mining DistrictMining District
Shoshone CountyCounty
IdahoState
USACountry

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Latitude & Longitude (WGS84):
47° 32' 7'' North , 115° 52' 21'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Wallace761 (2017)8.0km
Mullan675 (2017)9.0km
Osburn1,510 (2017)10.0km
Kellogg2,069 (2017)18.5km
Wardner186 (2017)19.7km
Mindat Locality ID:
45709
Long-form identifier:
mindat:1:2:45709:8
GUID (UUID V4):
0
Other/historical names associated with this locality:
Delaware Mines Corp.; North; Rex Mine; Sixteen-to-One Mine; 16 to 1 Mine


Located in the East Fork Ninemile Creek approximately 4.9 miles (7.9 kilometers) northeast of Wallace, Idaho.

The US Bureau of Mines lists the production from 1905 to 1949 as being 154,000 tons of ore containing 246,000 ounces of silver, 10,671,000 pounds of lead, 9,592,000 pounds of zinc, 35,000 pounds of copper, and 100 ounces of gold.

Development Status: Past Producer
Host Rock Unit(s): Prichard Formation, South Gem Stock
Host Rock(s): Quartzite, Argillite, Monzonite/Syenite
Structure(s): Shear Zones and Intrusive Contact Zones
Alteration(s): Unknown
Deposit Type(s): Veins
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


11 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Diopside
Formula: CaMgSi2O6
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Galena
Formula: PbS
'Garnet Group'
Formula: X3Z2(SiO4)3
Hematite
Formula: Fe2O3
'Hornblende Root Name Group' ?
Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2
Magnetite
Formula: Fe2+Fe3+2O4
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe1-xS
Quartz
Formula: SiO2
Siderite
Formula: FeCO3
Sphalerite
Formula: ZnS
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Pyrrhotite2.CC.10Fe1-xS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Group 9 - Silicates
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Diopside9.DA.15CaMgSi2O6
Unclassified
'Chlorite Group'-
'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
'Hornblende Root Name Group' ?-◻Ca2(C2+4C3+)(AlSi7O22)W2
'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
BBoron
B TourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
C SideriteFeCO3
OOxygen
O DiopsideCaMgSi2O6
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O QuartzSiO2
O SideriteFeCO3
O TourmalineAD3G6(T6O18)(BO3)3X3Z
O Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
O Garnet GroupX3Z2(SiO4)3
MgMagnesium
Mg DiopsideCaMgSi2O6
AlAluminium
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
SiSilicon
Si DiopsideCaMgSi2O6
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si QuartzSiO2
Si Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Si Garnet GroupX3Z2(SiO4)3
SSulfur
S ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
S PyrrhotiteFe1-xS
S SphaleriteZnS
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
CaCalcium
Ca DiopsideCaMgSi2O6
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
FeIron
Fe ChalcopyriteCuFeS2
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe SideriteFeCO3
CuCopper
Cu ChalcopyriteCuFeS2
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn SphaleriteZnS
SbAntimony
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
PbLead
Pb GalenaPbS

Other Databases

Link to USGS MRDS:10089460
Link to USGS MRDS:10144942
Link to USGS MRDS:10168828

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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