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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Caryopilite from
Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA


Locality type:Mine
Classification
Species:Caryopilite
Formula:Mn32+Si2O5(OH)4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Caryopilite data
Locality Data:Click here to view Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
Data Identifiers
Mindat Occurrence Record ID:28145
Long-form Identifier:1:3:28145:6
GUID (UUID V4):0
References
Plante, A. (1992) Western Massachusetts Mineral Localities. Valley Geology Press, 1992: 150 pgs.
 
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