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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Plagioclase from
Amazonite occurrence, pegmatite outcrops, Pack, Hirschegg-Pack, Voitsberg District, Styria, Austria


Locality type:Occurrence
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Amazonite occurrence, pegmatite outcrops, Pack, Hirschegg-Pack, Voitsberg District, Styria, Austria
Data Identifiers
Mindat Occurrence Record ID:692193
Long-form Identifier:1:3:692193:4
GUID (UUID V4):0
Nearest other occurrences of Plagioclase
6.6km (4.1 miles) ⓘMalteserhütte, Heb Alp, Hirschegg-Pack, Voitsberg District, Styria, Austria
6.9km (4.3 miles) ⓘA2 motorway tunnel (Herzogberg tunnel), Herzogberg, Modriach, Edelschrott, Voitsberg District, Styria, Austria
9.8km (6.1 miles) ⓘHematite Mine, Waldenstein, Wolfsberg, Wolfsberg District, Carinthia, Austria
10.4km (6.4 miles) ⓘStoffhütte pegmatite, Deutschlandsberg, Deutschlandsberg District, Styria, Austria
14.7km (9.2 miles) ⓘSamer, Kothgraben (Kotgraben), Kleinfeistritz, Weißkirchen in Steiermark, Murtal District, Styria, Austria
16.2km (10.1 miles) ⓘSpodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
16.3km (10.1 miles) ⓘGösler Hütte, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
17.6km (11.0 miles) ⓘBrandhöhe, Glashütten, Bad Schwanberg, Deutschlandsberg District, Styria, Austria
20.3km (12.6 miles) ⓘLeucophyllite mine, Kothgraben (Kotgraben), Kleinfeistritz, Weißkirchen in Steiermark, Murtal District, Styria, Austria
21.6km (13.4 miles) ⓘEngelweingarten, Gamsgebirg, Stainz, Deutschlandsberg District, Styria, Austria
References
Steir.Mineralog 24/2010, p.4-9
 
and/or  
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