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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Manganese-bearing Calcite from
Crystal Peak, Teller County, Colorado, USA


Locality type:Peak
Classification
Species:Calcite var: Manganese-bearing Calcite
Formula:(Ca,Mn)CO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Manganese-bearing Calcite data
Locality Data:Click here to view Crystal Peak, Teller County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:433224
Long-form Identifier:1:3:433224:4
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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