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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Tridymite from
Hostomice, Teplice District, Ústí nad Labem Region, Czech Republic


Locality type:Municipality
Classification
Species:Tridymite
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tridymite data
Locality Data:Click here to view Hostomice, Teplice District, Ústí nad Labem Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:719540
Long-form Identifier:1:3:719540:2
GUID (UUID V4):0
References
Žáček V, Skála R., Dvořák Z.: Spinelidy v pyrometamorfovaných horninách Mostecké pánve. Minerál, 2010, 18, 1, 21-31.
 
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