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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Plancheite from
Engine Vein Mine, Alderley Edge, Cheshire, England, UK


Locality type:Mine
Classification
Species:Plancheite
Formula:Cu8(Si8O22)(OH)4 · H2O
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Plancheite data
Locality Data:Click here to view Engine Vein Mine, Alderley Edge, Cheshire, England, UK
Data Identifiers
Mindat Occurrence Record ID:18794
Long-form Identifier:1:3:18794:7
GUID (UUID V4):0
References
 
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