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Astrophyllite

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SHS48242

Astrophyllite

ex. Collection Dr. Winfried Böhmer (Wunstorf/Germany)

Description Tabs

Description
Locality: 
Arøyskjærene, Langesundsfjorden, Larvik, Vestfold og Telemark, Norway
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 4.2 × 3.4 cm
Description

Astrophyllite crystals on matrix

Mineral Data
What's on the rock

Astrophyllite

Formula: 
(K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
Strunz: 
9.DC.05
Crystal System: 
Triclinic
Hardness: 
3.0
Streak: 
Golden
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway