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
Clagstone Prospect, Bridge Creek, Stehekin Mining District, Chelan County, Washington, USA


Locality type:Prospect
Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Clagstone Prospect, Bridge Creek, Stehekin Mining District, Chelan County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:248455
Long-form Identifier:1:3:248455:6
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
7.7km (4.8 miles) ⓘBlack Warrior Mine, Horseshoe Basin, Stehekin Mining District, Chelan County, Washington, USA
9.2km (5.7 miles) ⓘFalls Prospect, Doubtful Lake, Stehekin Mining District, Chelan County, Washington, USA
9.3km (5.8 miles) ⓘQuien Sabe Prospect, Doubtful Lake, Stehekin Mining District, Chelan County, Washington, USA
9.4km (5.8 miles) ⓘDoubtful Prospect, Doubtful Lake, Stehekin Mining District, Chelan County, Washington, USA
10.4km (6.5 miles) ⓘBoston Mine, Cascade River, Cascade Mining District, Skagit County, Washington, USA
20.5km (12.8 miles) ⓘGold Hill Mine, Slate Creek Mining District, Whatcom County, Washington, USA
22.8km (14.1 miles) ⓘAzurite Mine, Slate Creek Mining District, Whatcom County, Washington, USA
24.2km (15.1 miles) ⓘMid Range Mine, Twisp Mining District, Okanogan County, Washington, USA
29.6km (18.4 miles) ⓘAbernathy Prospect, Twisp Mining District, Okanogan County, Washington, USA
31.5km (19.6 miles) ⓘAllen Basin Mine, Slate Creek Mining District, Whatcom County, Washington, USA
References
Valentine, Grant M., Huntting, Marshall T. (1956) Part I - Nonmetallic minerals, in Inventory of Washington Minerals. Bulletin 37, Washington Geological Survey.
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
 
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