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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Arandisite from
Arandis, Arandis Constituency, Erongo Region, Namibia


Locality type:Town
Classification
Species:'Arandisite' (not an IMA approved species)
Formula:3SnSiO4 · 2SnO2 · 4H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arandisite data
Locality Data:Click here to view Arandis, Arandis Constituency, Erongo Region, Namibia
Data Identifiers
Mindat Occurrence Record ID:1506
Long-form Identifier:1:3:1506:6
GUID (UUID V4):0
Nearest other occurrences of Arandisite
4.3km (2.7 miles) ⓘArandis tin mine, Arandis Constituency, Erongo Region, Namibia
References
Rocks & Min. (1955) 30, 339-342
 
and/or  
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