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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Pyrolusite from
Heixiakou Mine, Yumen Co., Jiuquan, Gansu, China


Locality type:Mine
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Heixiakou Mine, Yumen Co., Jiuquan, Gansu, China
Data Identifiers
Mindat Occurrence Record ID:484175
Long-form Identifier:1:3:484175:3
GUID (UUID V4):0
References
www.mineralmundi.com (n.d.) http://www.mineralmundi.com/heixiakou-10003719.htm
 
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