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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Gyrolite from
Little Salmon River, Idaho County, Idaho, USA


Locality type:River
Classification
Species:Gyrolite
Formula:NaCa16Si23AlO60(OH)8 · 14H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gyrolite data
Locality Data:Click here to view Little Salmon River, Idaho County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:285275
Long-form Identifier:1:3:285275:1
GUID (UUID V4):0
References
 
and/or  
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