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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Plagioclase from
Passo Gallarino, Oncino, Cuneo Province, Piedmont, Italy


Locality type:Pass
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Passo Gallarino, Oncino, Cuneo Province, Piedmont, Italy
Data Identifiers
Mindat Occurrence Record ID:310232
Long-form Identifier:1:3:310232:9
GUID (UUID V4):0
Nearest other occurrences of Plagioclase
17.9km (11.1 miles) ⓘRoche Noire west slope, Ceillac, Briançon, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
35.9km (22.3 miles) ⓘPunta Muret gneiss outcrop, Perrero, Metropolitan City of Turin, Piedmont, Italy
36.9km (22.9 miles) ⓘTroncea, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
38.2km (23.7 miles) ⓘColle di Bousson, Cesana Torinese, Metropolitan City of Turin, Piedmont, Italy
38.3km (23.8 miles) ⓘLago Nero spilite outcrop, Cesana Torinese, Metropolitan City of Turin, Piedmont, Italy
41.0km (25.5 miles) ⓘMonte Gimont east slope (Grand Charvia east slope), Cesana Torinese, Metropolitan City of Turin, Piedmont, Italy
41.6km (25.9 miles) ⓘCabane des Douaniers, Cervières, Briançon, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
42.4km (26.3 miles) ⓘMont de la Plane northeast slope, Claviere, Metropolitan City of Turin, Piedmont, Italy
50.3km (31.2 miles) ⓘPiana del Valasco, Terme di Valdieri, Valdieri, Cuneo Province, Piedmont, Italy
54.8km (34.1 miles) ⓘRio Geronda Valley, Salbertrand, Metropolitan City of Turin, Piedmont, Italy
References
MESSIGA, , KIENAST, , REBAY, , RICCARDI, , TRIBUZIO, (2001) Cr-rich magnesiochloritoid eclogites from the Monviso ophiolites (Western Alps, Italy) Journal of Metamorphic Geology, 17 (3) 287-299 doi:10.1046/j.1525-1314.1999.00198.x
 
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