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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Calcite from
Unnamed "Limestone" mine, Sugar Hill, Grafton County, New Hampshire, USA


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Unnamed "Limestone" mine, Sugar Hill, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:53745
Long-form Identifier:1:3:53745:2
GUID (UUID V4):0
References
 
and/or  
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