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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Graphite from
Bossburg Graphite Occurrence, Colville Mining District, Stevens County, Washington, USA


Locality type:Outcrop
Classification
Species:Graphite
Formula:C
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Graphite data
Locality Data:Click here to view Bossburg Graphite Occurrence, Colville Mining District, Stevens County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:236205
Long-form Identifier:1:3:236205:2
GUID (UUID V4):0
References
Valentine, Grant M., Huntting, Marshall T. (1956) Part I - Nonmetallic minerals, in Inventory of Washington Minerals. Bulletin 37, Washington Geological Survey.
 
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