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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Anorthite from
Migiandone Mine (Miggiandone), Ornavasso, Verbano-Cusio-Ossola Province, Piedmont, Italy


Locality type:Mine
Classification
Species:Anorthite
Formula:Ca(Al2Si2O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Anorthite data
Locality Data:Click here to view Migiandone Mine (Miggiandone), Ornavasso, Verbano-Cusio-Ossola Province, Piedmont, Italy
Data Identifiers
Mindat Occurrence Record ID:535607
Long-form Identifier:1:3:535607:2
GUID (UUID V4):0
Nearest other occurrences of Anorthite
20.8km (12.9 miles) ⓘValmaggia, Cravagliana, Vercelli Province, Piedmont, Italy
55.4km (34.4 miles) ⓘCastello Svitto, Bellinzona, Bellinzona, Ticino, Switzerland
71.7km (44.5 miles) ⓘPromegn, Cama Valley, Cama, Moesa Region, Grisons, Switzerland
76.1km (47.3 miles) ⓘBorgo peridotite outcrop, Livo, Como Province, Lombardy, Italy
88.1km (54.7 miles) ⓘSan Giorgio, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy
99.4km (61.7 miles) ⓘPunta Trubinasca, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy
References
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta - Associazione Amici del Museo "F. Eusebio" Alba.
 
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