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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Chalcedony from
St Andreasberg, Braunlage, Goslar District, Lower Saxony, Germany


Locality type:Town
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view St Andreasberg, Braunlage, Goslar District, Lower Saxony, Germany
Data Identifiers
Mindat Occurrence Record ID:29132
Long-form Identifier:1:3:29132:9
GUID (UUID V4):0
References
 
and/or  
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