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Astrophyllite

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MGR703092

Astrophyllite

Description Tabs

Description
Locality: 
Kola Peninsula, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 6.2 × 2.6 cm
Description

Small but nice intense bronze, lustrous astrophyllite sun in grey Natrolite mass between crystals of white orthoclase from the central part of the Main wadeite pegmatite at Eveslogchorr mountain.

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