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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Aegirine from
Trondsrødfjellet roadcut Rv 301 (Agnes), Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway


Locality type:Road Cutting
Classification
Species:Aegirine
Formula:NaFe3+Si2O6
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Aegirine data
Locality Data:Click here to view Trondsrødfjellet roadcut Rv 301 (Agnes), Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
Data Identifiers
Mindat Occurrence Record ID:1234929
Long-form Identifier:1:3:1234929:4
GUID (UUID V4):0
Nearest other occurrences of Aegirine
1.7km (1.1 miles) ⓘSolstadbakken, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
3.2km (2.0 miles) ⓘVadholmen, Fredriksvern Verft, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
3.5km (2.1 miles) ⓘJahrehagen cottage grounds, Jahren pegmatite, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
3.5km (2.2 miles) ⓘJahren pegmatite, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
3.5km (2.2 miles) ⓘJahren Feldspar Quarry (Jaren Feldspar Quarry), Jahren pegmatite, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
3.5km (2.2 miles) ⓘRV 301 Helgeroaveien roadcut, Jahren pegmatite, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
3.6km (2.2 miles) ⓘNalum, Brunlanes, Larvik Commune, Vestfold, Norway
4.0km (2.5 miles) ⓘLarvik town, Larvik Commune, Vestfold, Norway
4.2km (2.6 miles) ⓘFuglevika Feldspar Prospect East, Fuglevika, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
4.2km (2.6 miles) ⓘFuglevika Feldspar Prospect, Fuglevika, Stavern (Fredriksvärn), Larvik Commune, Vestfold, Norway
References
Berge, Svein A. (n.d.) Personal communication.
 
and/or  
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