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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Quartz from
A2 motorway tunnel (Kalcherkogel tunnel), Kalcherkogel, Packsattel, Preitenegg, Wolfsberg District, Carinthia, Austria


Locality type:Tunnel
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view A2 motorway tunnel (Kalcherkogel tunnel), Kalcherkogel, Packsattel, Preitenegg, Wolfsberg District, Carinthia, Austria
Data Identifiers
Mindat Occurrence Record ID:692154
Long-form Identifier:1:3:692154:5
GUID (UUID V4):0
Nearest other occurrences of Quartz
1.5km (0.9 miles) ⓘMaxlhoisl, Preitenegg, Wolfsberg District, Carinthia, Austria
2.4km (1.5 miles) ⓘKlementkogel, Hirschegg-Pack, Voitsberg District, Styria, Austria
3.0km (1.9 miles) ⓘAmazonite occurrence, pegmatite outcrops, Pack, Hirschegg-Pack, Voitsberg District, Styria, Austria
3.5km (2.2 miles) ⓘBugglbauer (Buckelbauer), Preitenegg, Wolfsberg District, Carinthia, Austria
4.2km (2.6 miles) ⓘMalteserhütte, Heb Alp, Hirschegg-Pack, Voitsberg District, Styria, Austria
4.4km (2.7 miles) ⓘKnödelhütte pegmatite, Preitenegg, Wolfsberg District, Carinthia, Austria
4.5km (2.8 miles) ⓘReinisch quarry, Stampf, Edelschrott, Voitsberg District, Styria, Austria
4.7km (2.9 miles) ⓘHeb Alp, Hirschegg-Pack, Voitsberg District, Styria, Austria
7.3km (4.5 miles) ⓘA2 motorway tunnel (Herzogberg tunnel), Herzogberg, Modriach, Edelschrott, Voitsberg District, Styria, Austria
7.5km (4.7 miles) ⓘFreiländer Alp, Heb Alp, Hirschegg-Pack, Voitsberg District, Styria, Austria
References
Annalen 1999, p.49-52
 
and/or  
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