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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Dravite from
U obrázku quarry (Obrázek I quarry), Písek District, South Bohemian Region, Czech Republic


Locality type:Quarry
Classification
Species:Dravite
Formula:NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dravite data
Locality Data:Click here to view U obrázku quarry (Obrázek I quarry), Písek District, South Bohemian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:659529
Long-form Identifier:1:3:659529:6
GUID (UUID V4):0
Nearest other occurrences of Dravite
44.9km (27.9 miles) ⓘMříč outcrops, Mříč, Kremze, Český Krumlov District, South Bohemian Region, Czech Republic
47.8km (29.7 miles) ⓘPacova Hill quarry, Dolní Hořice, Tábor District, South Bohemian Region, Czech Republic
64.8km (40.3 miles) ⓘBližná quarry, Bližná, Černá v Pošumaví, Český Krumlov District, South Bohemian Region, Czech Republic
72.0km (44.7 miles) ⓘOberhaag quarry, Aigen-Schlägl, Rohrbach District, Upper Austria, Austria
73.2km (45.5 miles) ⓘDumortierite occurrence, Psáry, Prague-West District, Central Bohemian Region, Czech Republic
79.0km (49.1 miles) ⓘSteinerleinbach Quarry, Röhrnbach, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
84.8km (52.7 miles) ⓘGrögöd Quarry (G'steinert Quarry), Untergriesbach, Passau District, Lower Bavaria, Bavaria, Germany
85.9km (53.4 miles) ⓘKropfmühl Mine, Kropfmühl, Hauzenberg, Passau District, Lower Bavaria, Bavaria, Germany
86.0km (53.4 miles) ⓘPoschingerhütte Quarry (Rauchloch), Arnbruck, Regen District, Lower Bavaria, Bavaria, Germany
88.4km (54.9 miles) ⓘMaisried pegmatite, Böbrach, Regen District, Lower Bavaria, Bavaria, Germany
References
Historic mineral collection National museum of Czech Republic
 
and/or  
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