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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Samarskite-(Y) from
Nothamn, Väddö, Norrtälje, Stockholm County, Sweden


Classification
Species:Samarskite-(Y)
Formula:YFe3+Nb2O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Samarskite-(Y) data
Locality Data:Click here to view Nothamn, Väddö, Norrtälje, Stockholm County, Sweden
Data Identifiers
Mindat Occurrence Record ID:101962
Long-form Identifier:1:3:101962:9
GUID (UUID V4):0
References
Dana 7:I:799.
 
and/or  
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