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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Dravite from
Pegmatite occurrences, Bulgaria


Locality type:Occurrence
Classification
Species:Dravite
Formula:NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dravite data
Locality Data:Click here to view Pegmatite occurrences, Bulgaria
Data Identifiers
Mindat Occurrence Record ID:740883
Long-form Identifier:1:3:740883:0
GUID (UUID V4):0
References
Petrusenko, S. & Arnaudov, V. (1996): Desilicified pegmatites with dravite and corundum from the Ikhtiman Sredna Gora, Bulgaria. Geokhimiya, Mineralogiya i Petrologiya 31, 65-77 (in Bulgarian).
 
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