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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Friedrichite from
Svishti Plaz Mine, Etropole Municipality, Sofia Province, Bulgaria


Locality type:Mine
Classification
Species:Friedrichite
Formula:Cu5Pb5Bi7S18
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Friedrichite data
Locality Data:Click here to view Svishti Plaz Mine, Etropole Municipality, Sofia Province, Bulgaria
Data Identifiers
Mindat Occurrence Record ID:216436
Long-form Identifier:1:3:216436:6
GUID (UUID V4):0
References
www.bgd.bg (n.d.) http://www.bgd.bg/summanual_2003_5.htm
Mladenova, V., Kerestedjian, T., & Dimitrova, D. (2001). Ag-Cu-Pb-Bi mineralization from the Svishti Plaz gold deposit, Central Balkan Mountain, Bulgaria. Geochem. Mineral. Petrol, 38, 55-66.
 
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