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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Cobalt-bearing Dolomite from
Příbram District, Central Bohemian Region, Czech Republic


Locality type:District
Classification
Species:Dolomite var: Cobalt-bearing Dolomite
Formula:Ca(Mg,Co)(CO3)2
Comments:with hisingerite, on an old Czech National Museum specimen originally labelled "cobalt bloom"
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Škáchaite1
Data
Mineral Data:Click here to view Cobalt-bearing Dolomite data
Locality Data:Click here to view Příbram District, Central Bohemian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:643171
Long-form Identifier:1:3:643171:6
GUID (UUID V4):0
References
Josef Vajdak (2008) Mineral News, 24, #3, 15.
 
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