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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Iodargyrite from
Red Cloud Mine (Chicago; Colorado Occurrence), Gold Hill Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Iodargyrite
Formula:AgI
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Iodargyrite data
Locality Data:Click here to view Red Cloud Mine (Chicago; Colorado Occurrence), Gold Hill Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:463329
Long-form Identifier:1:3:463329:7
GUID (UUID V4):0
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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