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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Analcime from
Fletcher Bay, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand


Locality type:Bay
Classification
Species:Analcime
Formula:Na(AlSi2O6) · H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Analcime data
Locality Data:Click here to view Fletcher Bay, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
Data Identifiers
Mindat Occurrence Record ID:980214
Long-form Identifier:1:3:980214:8
GUID (UUID V4):0
References
Brathwaite, R.L. Sedimentary Zeolite Deposits in New Zealand. http://www.iza-online.org/natural/Catalog/New_Zealand.pdf
 
and/or  
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