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Astrophyllite

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PCZ644634

Astrophyllite

Description Tabs

Description
Locality: 
Ilímaussaq, Narsaq, Kujalleq, Greenland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.5 × 0.9 cm
Description

Specimens from Greenland don't often come on the market. This consists of sharp little crystals of astrophyllite. A very rare locality.

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
Peter Crozier Minerals