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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Chalcotrichite from
Black and White Mine, North Fork of the Skokomish River Area, Mason County, Washington, USA


Locality type:Mine
Classification
Species:Cuprite var: Chalcotrichite
Formula:Cu2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcotrichite data
Locality Data:Click here to view Black and White Mine, North Fork of the Skokomish River Area, Mason County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:96074
Long-form Identifier:1:3:96074:8
GUID (UUID V4):0
References
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.pages 80, 1975
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
 
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