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
Midtmoen, Øståsen, Lunner, Akershus, Norway


Locality type:Road Cutting
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 Midtmoen, Øståsen, Lunner, Akershus, Norway
Data Identifiers
Mindat Occurrence Record ID:170441
Long-form Identifier:1:3:170441:9
GUID (UUID V4):0
Nearest other occurrences of Orthoclase
9.5km (5.9 miles) ⓘKalkovnen, Østhagan Nature Reserve, Grua mining district, Lunner, Akershus, Norway
10.9km (6.8 miles) ⓘZone 6, RV 4 roadcuts, Harestua, Lunner, Akershus, Norway
11.0km (6.8 miles) ⓘZone 7, RV 4 roadcuts, Harestua, Lunner, Akershus, Norway
14.2km (8.8 miles) ⓘZone 2, RV 4 roadcuts, Harestua, Lunner, Akershus, Norway
15.2km (9.5 miles) ⓘGjerdingselva, Lunner, Akershus, Norway
25.2km (15.7 miles) ⓘByrud Emerald Mines, Minnesund, Eidsvoll, Akershus, Norway
34.2km (21.2 miles) ⓘKristiansen Quarry (Bånkall Quarry), Bånkall, Grorud, Oslo, Norway
34.7km (21.5 miles) ⓘHuken Quarry, Grorud, Oslo, Norway
37.4km (23.2 miles) ⓘTonsenplassen, Oslomarka, Oslo, Norway
52.1km (32.4 miles) ⓘHørtekollen Fluorite Mine, Sylling, Lier, Buskerud, Norway
References
Kvamsdal, Lars O. (1993) Noen mineraler fra nordmarkitten mellom Roa og Maura. STEIN. Nordisk magasin for populær geologi, 20 (1) 30-45
 
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