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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Tapiolite from
Krupka, Teplice District, Ústí nad Labem Region, Czech Republic


Locality type:Municipality
Classification
Species:'Tapiolite' (not an IMA approved species)
Formula:(Fe,Mn)(Ta,Nb)2O6
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Tapiolite data
Locality Data:Click here to view Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:24241
Long-form Identifier:1:3:24241:1
GUID (UUID V4):0
References
Sejkora, Jiri (1998) Der Bergbaubezirk Krupka (Graupen), Krušné hory, Tschechische Republik [The Krupka (Graupen) mining district, Krušné hory, Czech Republic]. Lapis, 23 (4). 18-34; 54
 
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