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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Kyanite from
A2 motorway tunnel (Herzogberg tunnel), Herzogberg, Modriach, Edelschrott, Voitsberg District, Styria, Austria


Locality type:Tunnel
Classification
Species:Kyanite
Formula:Al2(SiO4)O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Kyanite data
Locality Data:Click here to view A2 motorway tunnel (Herzogberg tunnel), Herzogberg, Modriach, Edelschrott, Voitsberg District, Styria, Austria
Data Identifiers
Mindat Occurrence Record ID:305709
Long-form Identifier:1:3:305709:4
GUID (UUID V4):0
Nearest other occurrences of Kyanite
1.1km (0.7 miles) ⓘUnnamed quarry, Herzogberg, Modriach, Edelschrott, Voitsberg District, Styria, Austria
4.6km (2.9 miles) ⓘReinisch quarry, Stampf, Edelschrott, Voitsberg District, Styria, Austria
6.2km (3.9 miles) ⓘStraußkogel, Sankt Stefan ob Stainz, Deutschlandsberg District, Styria, Austria
8.2km (5.1 miles) ⓘMaxlhoisl, Preitenegg, Wolfsberg District, Carinthia, Austria
8.2km (5.1 miles) ⓘTeigitsch, Krottendorf-Gaisfeld, Voitsberg District, Styria, Austria
8.2km (5.1 miles) ⓘStoffhütte pegmatite, Deutschlandsberg, Deutschlandsberg District, Styria, Austria
13.1km (8.2 miles) ⓘGundersdorf, Sankt Stefan ob Stainz, Deutschlandsberg District, Styria, Austria
15.4km (9.6 miles) ⓘHandalpe, Bad Schwanberg, Deutschlandsberg District, Styria, Austria
15.6km (9.7 miles) ⓘSpodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
16.1km (10.0 miles) ⓘGlashütten, Bad Schwanberg, Deutschlandsberg District, Styria, Austria
References
Postl, W. & Bojar, H.-P. (2002)
 
and/or  
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