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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Carnotite from
New-Gate Copper Mine (Old New-Gate Prison), Simsbury Mines, East Granby, Hartford County, Connecticut, USA


Locality type:Mine
Classification
Species:Carnotite
Formula:K2(UO2)2(VO4)2 · 3H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Carnotite data
Locality Data:Click here to view New-Gate Copper Mine (Old New-Gate Prison), Simsbury Mines, East Granby, Hartford County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:615160
Long-form Identifier:1:3:615160:7
GUID (UUID V4):0
References
Gray 1982
 
and/or  
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