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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Nekrasovite from
Chelopech Au-Cu Mine, Chelopech Municipality, Sofia Province, Bulgaria


Locality type:Mine
Classification
Species:Nekrasovite
Formula:Cu26V2(Sn,As,Sb)6S32
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Nekrasovite data
Locality Data:Click here to view Chelopech Au-Cu Mine, Chelopech Municipality, Sofia Province, Bulgaria
Data Identifiers
Mindat Occurrence Record ID:896286
Long-form Identifier:1:3:896286:7
GUID (UUID V4):0
References
Bonev, I.K.
Petrunov, R.
Cook, N. J.
Cook, N. J.; Ciobanu, C. L.; Bogdanov, K. (2002) Trace mineralogy of the Upper Cretaceous banatitic Magmatic and metallogenetic Belt, SE Europe. 11th Quadrennial IAGOD symposium–Geocongress 2002, ume.
Bonev, I.K., Petrunov, R., Cook, N.J., Ciobanu, C.L. (2005) Kostovite and its argentian varieties: Deposits and mineral associations. Geochemistry, Mineralogy and Petrology (Bulgarian Academy of Sciences): 42: 1-22.
 
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