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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Rock Crystal from
Allendale, Northumberland, England, UK


Locality type:Civil Parish
Classification
Species:Quartz var: Rock Crystal
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Rock Crystal data
Locality Data:Click here to view Allendale, Northumberland, England, UK
Data Identifiers
Mindat Occurrence Record ID:790740
Long-form Identifier:1:3:790740:1
GUID (UUID V4):0
References
Hall, Townshend M. (1868) The Mineralogist's Directory: or, a guide to the Principal Mineral Localities in the United Kingdom of Great Britain and Ireland. Edward Stanford.
 
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