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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Anorthoclase from
Magnet Cove, Hot Spring County, Arkansas, USA


Locality type:Census-designated Place
Classification
Species:Albite var: Anorthoclase
Formula:(Na,K)AlSi3O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Anorthoclase data
Locality Data:Click here to view Magnet Cove, Hot Spring County, Arkansas, USA
Data Identifiers
Mindat Occurrence Record ID:87799
Long-form Identifier:1:3:87799:8
GUID (UUID V4):0
References
Erickson, Ralph Leroy
Blade, Lawrence Vernon (1963) Geochemistry and petrology of the alkalic igneous complex at Magnet Cove, Arkansas. USGS Prof. Paper 425.
 
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