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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Cobaltite from
Sunshine Prospect (Sunshine Mine; Sunshine ore zone; Ram ore zone), Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA


Locality type:Prospect
Classification
Species:Cobaltite
Formula:CoAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cobaltite data
Locality Data:Click here to view Sunshine Prospect (Sunshine Mine; Sunshine ore zone; Ram ore zone), Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:216360
Long-form Identifier:1:3:216360:4
GUID (UUID V4):0
Nearest other occurrences of Cobaltite
0.5km (0.3 miles) ⓘBlacktail pit, Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
1.0km (0.6 miles) ⓘJervois Idaho Cobalt Operations Mine, Blackbird Mining District, Lemhi County, Idaho, USA
1.1km (0.7 miles) ⓘBrown Bear Mine (Brown Bear Shaft), Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
1.4km (0.9 miles) ⓘChicago Mine, Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
1.8km (1.1 miles) ⓘCalera Mine, Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
1.9km (1.2 miles) ⓘHowe Sound Adit (Howe Sound Mine), Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
2.0km (1.2 miles) ⓘSt Joe Prospect, Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
2.3km (1.4 miles) ⓘBohannon Prospect (Gray Eagle Prospect), Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
2.3km (1.4 miles) ⓘTom Jefferson Claims, Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
2.5km (1.5 miles) ⓘMerle ore zone, Blackbird mine complex, Blackbird Mining District, Lemhi County, Idaho, USA
References
USGS OFR 87-410
Ream, Lanny R. (1995) Idaho: Mineral Locality Index. Rocks & Minerals, 70 (4) 242-263 doi:10.1080/00357529.1995.9926628
 
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