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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Quartz from
Bjønndalen Quarry, Nittedal, Akershus, Norway


05155480017370567253525.jpg
Quartz, etc.

Bjønndalen Quarry, Nittedal, Akershus, Norway
09733850017462174555901.jpg
Prase

Bjønndalen Quarry, Nittedal, Akershus, Norway
02196080017464057139764.jpg
Quartz, etc.

Bjønndalen Quarry, Nittedal, Akershus, Norway
00514050017272035871311.jpg
Quartz, etc.

Bjønndalen Quarry, Nittedal, Akershus, Norway
09733850017462174555901.jpg
Prase

Bjønndalen Quarry, Nittedal, Akershus, Norway
02196080017464057139764.jpg
Quartz, etc.

Bjønndalen Quarry, Nittedal, Akershus, Norway
00514050017272035871311.jpg
Quartz, etc.

Bjønndalen Quarry, Nittedal, Akershus, Norway
06836600017464057136022.jpg
Prase

Bjønndalen Quarry, Nittedal, Akershus, Norway
02196080017464057139764.jpg
Quartz, etc.

Bjønndalen Quarry, Nittedal, Akershus, Norway
Locality type:Quarry
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite5
Pyrite2
Heulandite Subgroup1
Fluorite1
Hematite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Bjønndalen Quarry, Nittedal, Akershus, Norway
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:86453
Long-form Identifier:1:3:86453:2
GUID (UUID V4):0
Nearest other occurrences of Quartz
2.2km (1.4 miles) ⓘRingnes brewery, Gjelleråsen, Nittedal, Akershus, Norway
2.6km (1.6 miles) ⓘKristiansen Quarry (Bånkall Quarry), Bånkall, Grorud, Oslo, Norway
3.4km (2.1 miles) ⓘRomsås Prospect, Oslomarka, Oslo, Norway
3.7km (2.3 miles) ⓘHuken Quarry, Grorud, Oslo, Norway
4.2km (2.6 miles) ⓘRomsås, Grorud, Oslo, Norway
5.3km (3.3 miles) ⓘSandermosen, Maridalen, Oslomarka, Oslo, Norway
5.8km (3.6 miles) ⓘRødtvedt, Grorud, Oslo, Norway
7.1km (4.4 miles) ⓘTonsenplassen, Oslomarka, Oslo, Norway
8.6km (5.3 miles) ⓘBerger, Skedsmo, Lillestrøm, Akershus, Norway
8.8km (5.4 miles) ⓘVinsrud Fluorite Mine, Hakadal, Nittedal, Akershus, Norway
References
Berg, Hans-Jørgen (1994) Bjønndalen bruk. STEIN. Nordisk magasin for populær geologi, 21 (3) 205-216
 
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