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
Huken Quarry, Grorud, Oslo, Norway


Locality type:Quarry
Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Huken Quarry, Grorud, Oslo, Norway
Data Identifiers
Mindat Occurrence Record ID:169702
Long-form Identifier:1:3:169702:5
GUID (UUID V4):0
Nearest other occurrences of Orthoclase
2.5km (1.6 miles) ⓘKristiansen Quarry (Bånkall Quarry), Bånkall, Grorud, Oslo, Norway
3.3km (2.1 miles) ⓘTonsenplassen, Oslomarka, Oslo, Norway
23.8km (14.8 miles) ⓘZone 2, RV 4 roadcuts, Harestua, Lunner, Akershus, Norway
26.4km (16.4 miles) ⓘGjerdingselva, Lunner, Akershus, Norway
28.2km (17.5 miles) ⓘZone 7, RV 4 roadcuts, Harestua, Lunner, Akershus, Norway
28.3km (17.6 miles) ⓘZone 6, RV 4 roadcuts, Harestua, Lunner, Akershus, Norway
32.7km (20.3 miles) ⓘHeggedalsveien, Asker, Akershus, Norway
33.3km (20.7 miles) ⓘKalkovnen, Østhagan Nature Reserve, Grua mining district, Lunner, Akershus, Norway
34.1km (21.2 miles) ⓘHørtekollen Fluorite Mine, Sylling, Lier, Buskerud, Norway
34.7km (21.5 miles) ⓘMidtmoen, Øståsen, Lunner, Akershus, Norway
References
Brögger, W. C. (1894) Die Eruptivgesteine des Kristianiagebietes. 1. Die Gesteine der Grorudit-Tinguait-Serie. Videnskabsselskabet i Christiania Skrifter - I Mathematisk-naturvidenskabelig klasse Vol. 1894 (4). In commission by Jacob Dybwad p.1-206.
 
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