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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Biotite from
Costabonne mines (Costabona mines), Prats-de-Mollo-la-Preste, Céret, Pyrénées-Orientales, Occitanie, France


Locality type:Mine
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Costabonne mines (Costabona mines), Prats-de-Mollo-la-Preste, Céret, Pyrénées-Orientales, Occitanie, France
Data Identifiers
Mindat Occurrence Record ID:488242
Long-form Identifier:1:3:488242:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
14.5km (9.0 miles) ⓘMassif du Canigou, Vernet-les-Bains, Prades, Pyrénées-Orientales, Occitanie, France
27.5km (17.1 miles) ⓘPuig de la Garrinada Volcano, Olot, Girona, Catalonia, Spain
39.5km (24.5 miles) ⓘAnsignan charnockite intrusion, Feilluns (Felluns), Prades, Pyrénées-Orientales, Occitanie, France
55.5km (34.5 miles) ⓘOsor Mines, Osor, Girona, Catalonia, Spain
59.0km (36.7 miles) ⓘMas Joanhuix pegmatite, Sant Hilari Sacalm, La Selva, Girona, Catalonia, Spain
60.1km (37.3 miles) ⓘPegmatite field, Collioure, Céret, Pyrénées-Orientales, Occitanie, France
61.6km (38.3 miles) ⓘComa de Ransol, Canillo, Andorra
62.2km (38.6 miles) ⓘTrimouns Talc Mine, Luzenac, Foix, Ariège, Occitanie, France
62.4km (38.8 miles) ⓘLa Noguerola, Viladrau, Osona, Girona, Catalonia, Spain
64.8km (40.3 miles) ⓘLa Erola pegmatite field, Viladrau, Osona, Girona, Catalonia, Spain
References
Dubru. M, (1986) Pétrologie et géochimie du marbre à brucite et des borates associés au gisement de tungstène de Costabonne, (Pyrénées orientales, France) 930p
 
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