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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Pyrochlore Group from
Stålaker Quarry, Stålaker, Tjølling, Larvik Commune, Vestfold, Norway


04184170017373134108982.jpg
Pyrochlore Group

Stålaker Quarry, Stålaker, Tjølling, Larvik Commune, Vestfold, Norway
04184170017373134108982.jpg
Pyrochlore Group

Stålaker Quarry, Stålaker, Tjølling, Larvik Commune, Vestfold, Norway
06875620017369110852245.jpg
Pyrochlore Group

Stålaker Quarry, Stålaker, Tjølling, Larvik Commune, Vestfold, Norway
Locality type:Quarry
Classification
Species:'Pyrochlore Group' (not an IMA approved species)
Formula:A2Nb2(O,OH)6Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrochlore Group data
Locality Data:Click here to view Stålaker Quarry, Stålaker, Tjølling, Larvik Commune, Vestfold, Norway
Data Identifiers
Mindat Occurrence Record ID:680648
Long-form Identifier:1:3:680648:4
GUID (UUID V4):0
Nearest other occurrences of Pyrochlore Group
0.9km (0.6 miles) ⓘHåkestad Quarry, Håkestad, Tjølling, Larvik Commune, Vestfold, Norway
3.3km (2.1 miles) ⓘSkallist Quarry, Klåstad, Tjølling, Larvik Commune, Vestfold, Norway
3.5km (2.2 miles) ⓘHovland (E18 roadcut), Larvik Commune, Vestfold, Norway
3.6km (2.2 miles) ⓘKlåstad Quarry, Klåstad, Tjølling, Larvik Commune, Vestfold, Norway
3.8km (2.3 miles) ⓘRødbøl roadcut, Hedrum, Larvik Commune, Vestfold, Norway
3.8km (2.3 miles) ⓘHasle Quarry, Klåstad, Tjølling, Larvik Commune, Vestfold, Norway
3.9km (2.4 miles) ⓘBlokksten Quarry, Tjølling, Larvik Commune, Vestfold, Norway
4.4km (2.7 miles) ⓘHedrum Quarry, Lågendalen, Hedrum, Larvik Commune, Vestfold, Norway
4.6km (2.8 miles) ⓘTorstrand, Larvik town, Larvik Commune, Vestfold, Norway
4.8km (3.0 miles) ⓘRingdalskogen, Hedrum, Larvik Commune, Vestfold, Norway
References
Åsheim, Arne (1988) Hambergitt Be2(OH,F)BO2 [Hambergite Be2(OH,F)BO2]. Mineralogisk-Geologisk Museum - Universitetet i Oslo- Interne notater, Geologisk Museums venner. 126-127
Larsen, Alf Olav; Andersen, Frode; Dahlgren, Sven; Larsen, Knut Edvard; Burvald, Ingulv - Ed. (2010) The Langesundsfjord - History, geology, pegmatites, minerals. Bode Verlag Gmbh. 240 pp.
Haifler, Jakub, Škoda, Radek, Filip, Jan, Larsen, Alf Olav, Rohlíček, Jan (2021) Zirconolite from Larvik Plutonic Complex, Norway, its relationship to stefanweissite and nöggerathite, and contribution to the improvement of zirconolite end-member systematics. American Mineralogist, 106 (8) 1255-1272 doi:10.2138/am-2021-7510
 
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