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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Astrophyllite from
Eikaholmen, Larvik Commune, Vestfold, Norway


06656250017480885393698.jpg
Astrophyllite, etc.

Eikaholmen, Larvik Commune, Vestfold, Norway
06656250017480885393698.jpg
Astrophyllite, etc.

Eikaholmen, Larvik Commune, Vestfold, Norway
01358160017480885402927.jpg
Astrophyllite, etc.

Eikaholmen, Larvik Commune, Vestfold, Norway
Locality type:Pegmatite
Classification
Species:Astrophyllite
Formula:K2NaFe72+Ti2[Si4O12]2O2(OH)4F
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Aegirine3
Leucophanite2
Data
Mineral Data:Click here to view Astrophyllite data
Locality Data:Click here to view Eikaholmen, Larvik Commune, Vestfold, Norway
Data Identifiers
Mindat Occurrence Record ID:84258
Long-form Identifier:1:3:84258:5
GUID (UUID V4):0
Nearest other occurrences of Astrophyllite
0.1km (0.1 miles) ⓘEudidymite-Epididymite locality, Vesle Arøya, Larvik Commune, Vestfold, Norway
0.2km (0.1 miles) ⓘNatrolittodden, Vesle Arøya, Larvik Commune, Vestfold, Norway
0.5km (0.3 miles) ⓘArøyskjærene North, Arøyskjærene (Arøy skerries), Larvik Commune, Vestfold, Norway
1.3km (0.8 miles) ⓘTangane, Siktesøya, Porsgrunn, Telemark, Norway
3.3km (2.1 miles) ⓘBarkevikstranda, Barkevika, Barkevik area, Larvik Commune, Vestfold, Norway
3.3km (2.1 miles) ⓘBiong, Barkevik area, Larvik Commune, Vestfold, Norway
3.5km (2.2 miles) ⓘBarkevika, Barkevik area, Larvik Commune, Vestfold, Norway
3.8km (2.4 miles) ⓘHeia Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
4.3km (2.7 miles) ⓘSagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
4.4km (2.7 miles) ⓘSaga 1 Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
References
Collection of Naturhistoriska Riksmuseet i Stockholm (The Natural History Museum), Sweden.
Brøgger, Waldemar Christofer (1890) Die Mineralien der Syenitpegmatitgänge der südnorwegischen Augit- und Nephelinsyenite. Zeitschrift für Krystallographie und Mineralogie, 16 (1). 1-893
 
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