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Astrophyllite

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SHS955339

Astrophyllite

Description Tabs

Description
Locality: 
Kvanefjeld, Ilímaussaq, Narsaq, Kujalleq, Greenland
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 1.2 × 1.5 cm
Description

Astrophyllite 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