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Astrophyllite

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PDM669428

Astrophyllite

Description Tabs

Description
Locality: 
Kola Peninsula, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.8 × 5.2 × 4 cm
Description

A rich matrix specimen of interconnected radial aggregates of lustrous golden astrophyllite. Typical Kola material that is aesthetic for the species.

Ex. Johann Muizebelt specimen.

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

Seller Information

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