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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Orthoclase from
Mathullet, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway


Locality type:Outcrop
Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Mathullet, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
Data Identifiers
Mindat Occurrence Record ID:680765
Long-form Identifier:1:3:680765:8
GUID (UUID V4):0
Nearest other occurrences of Orthoclase
2.4km (1.5 miles) ⓘStavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
10.6km (6.6 miles) ⓘUla pegmatite, Ula, Tjølling, Larvik Commune, Vestfold, Norway
19.4km (12.1 miles) ⓘHjertnesåsen (Ranvikmyra), Sandefjord, Vestfold, Norway
20.1km (12.5 miles) ⓘGrønåsveien, Bugården, Sandefjord, Vestfold, Norway
21.2km (13.2 miles) ⓘVarden area, Vesterøya, Sandefjord, Vestfold, Norway
37.0km (23.0 miles) ⓘHoltehædde, Hedrum, Larvik Commune, Vestfold, Norway
41.0km (25.5 miles) ⓘHimberg Quarry, Ramnes, Tønsberg, Vestfold, Norway
64.5km (40.0 miles) ⓘSandvika, Svelvik, Drammen, Buskerud, Norway
64.8km (40.3 miles) ⓘDyrdal, Sande, Holmestrand, Vestfold, Norway
65.5km (40.7 miles) ⓘRødtangen, Hurum, Asker, Akershus, Norway
References
Brøgger, Waldemar Christofer (1890) Die Mineralien der Syenitpegmatitgänge der südnorwegischen Augit- und Nephelinsyenite. Zeitschrift für Krystallographie und Mineralogie, 16 (1). 1-893p.520
 
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