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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Zinnwaldite from
Rio Inferno quarry, Brughiere, Omegna, Verbano-Cusio-Ossola Province, Piedmont, Italy


Classification
Species:'Zinnwaldite' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Zinnwaldite data
Locality Data:Click here to view Rio Inferno quarry, Brughiere, Omegna, Verbano-Cusio-Ossola Province, Piedmont, Italy
Data Identifiers
Mindat Occurrence Record ID:570671
Long-form Identifier:1:3:570671:6
GUID (UUID V4):0
References
Albertini, C. (2000): Ritrovamenti nel Rio Inferno, Brughiere di Omegna. Prima segnalazione nel granito di Baveno : uranofane-beta. Rivista Mineralogica Italiana, Milano: 24(2): 88-92.
 
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