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


Locality type:Mine
Classification
Species:Piemontite
Formula:(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Piemontite 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:488273
Long-form Identifier:1:3:488273:2
GUID (UUID V4):0
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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