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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Chalcopyrite from
Kromona Mine, Sultan Mining District, Snohomish County, Washington, USA


Locality type:Mine
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Kromona Mine, Sultan Mining District, Snohomish County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:142004
Long-form Identifier:1:3:142004:3
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
1.5km (1.0 miles) ⓘGolden Eagle Prospect, Sultan Mining District, Snohomish County, Washington, USA
2.1km (1.3 miles) ⓘSt. Theresa Prospect, Sultan Mining District, Snohomish County, Washington, USA
3.1km (1.9 miles) ⓘMountain Cedar Prospect, North Fork of the Sultan River, Sultan Mining District, Snohomish County, Washington, USA
5.7km (3.5 miles) ⓘRed Cross Prospect, Reiter, Index Mining District, Snohomish County, Washington, USA
7.1km (4.4 miles) ⓘBorder Queen Prospect, Sultan Mining District, Snohomish County, Washington, USA
7.7km (4.8 miles) ⓘCopper Belle Mine, Reiter, Index Mining District, Snohomish County, Washington, USA
7.9km (4.9 miles) ⓘMarvel, Silver Creek Mining District, Snohomish County, Washington, USA
8.4km (5.2 miles) ⓘDoris Prospect, North Fork of the Sultan River, Sultan Mining District, Snohomish County, Washington, USA
8.8km (5.5 miles) ⓘEthel Mine, Index Mining District, Snohomish County, Washington, USA
8.8km (5.5 miles) ⓘCalumet Prospect, North Fork of the Sultan River, Sultan Mining District, Snohomish County, Washington, USA
References
Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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