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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Muscovite from
Evans Quarry, Grafton, Grafton County, New Hampshire, USA


Locality type:Quarry
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Evans Quarry, Grafton, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:52817
Long-form Identifier:1:3:52817:1
GUID (UUID V4):0
References
 
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