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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Arsenopyrite from
Mammoth Mine (Mammoth Copper Company; Anderson Mine; Mayflower Mine; Sheridan Mine; Gillispie Mine), Copper Crest group, Mammoth Butte, Backbone District, West Shasta Copper - Zinc Mining District, Klamath Mountains, Shasta County, California, USA


Locality type:Mine
Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Mammoth Mine (Mammoth Copper Company; Anderson Mine; Mayflower Mine; Sheridan Mine; Gillispie Mine), Copper Crest group, Mammoth Butte, Backbone District, West Shasta Copper - Zinc Mining District, Klamath Mountains, Shasta County, California, USA
Data Identifiers
Mindat Occurrence Record ID:770552
Long-form Identifier:1:3:770552:6
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
16.5km (10.3 miles) ⓘThree Sisters Mine (Three Sisters veins), French Gulch, French Gulch Mining District, Klamath Mountains, Shasta County, California, USA
21.2km (13.1 miles) ⓘSybil Mine (Shasta Hills Mine; Anaconda Mine; Accident Mine), Deadwood area, French Gulch Mining District, Klamath Mountains, Shasta County, California, USA
41.1km (25.5 miles) ⓘWeaverville, Weaverville District, Klamath Mountains, Trinity County, California, USA
42.1km (26.2 miles) ⓘDemocrat group, Weaverville, Weaverville District, Klamath Mountains, Trinity County, California, USA
75.0km (46.6 miles) ⓘDewey Mine (Dewey Gold Mines Trust), Mountain House, Klamath Mountains, Siskiyou County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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