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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Magnetite from
Huken Quarry, Grorud, Oslo, Norway


Locality type:Quarry
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Huken Quarry, Grorud, Oslo, Norway
Data Identifiers
Mindat Occurrence Record ID:169693
Long-form Identifier:1:3:169693:6
GUID (UUID V4):0
Nearest other occurrences of Magnetite
1.7km (1.1 miles) ⓘRomsås, Grorud, Oslo, Norway
2.5km (1.6 miles) ⓘKristiansen Quarry (Bånkall Quarry), Bånkall, Grorud, Oslo, Norway
3.3km (2.1 miles) ⓘTonsenplassen, Oslomarka, Oslo, Norway
3.7km (2.3 miles) ⓘBjønndalen Quarry, Nittedal, Akershus, Norway
5.7km (3.5 miles) ⓘSandermosen, Maridalen, Oslomarka, Oslo, Norway
9.5km (5.9 miles) ⓘRotnes Cu Prospect, Nittedal, Akershus, Norway
9.5km (5.9 miles) ⓘNMM/L1 micrometeorite, Skedsmo, Lillestrøm, Akershus, Norway
16.0km (10.0 miles) ⓘHolmlia, Søndre Nordstrand, Oslo, Norway
17.1km (10.6 miles) ⓘHaga Prospects, Bærum (Baerum), Akershus, Norway
18.9km (11.7 miles) ⓘVintermyrene Prospect, Bærum (Baerum), 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.p.11
 
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