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Vyuntspakhkite-(Y)

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GMN812159

Vyuntspakhkite-(Y)

Description Tabs

Description
Locality: 
Stetind Pegmatite, Tysfjord, Nordland, Norway
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 0.5 cm
Description

Brownish, beige blucky crystals in the matrix cavity.

Mineral Data
What's on the rock

Vyuntspakhkite-(Y)

Formula: 
(Y,Yb)4Al2.5-1.5(Si,Al)1.5-2.5(SiO4)4O(OH)7
Strunz: 
9.BG.40
Hardness: 
6.0 - 7.0
Type Locality: 
Ploskaya Mt, Western Keivy Massif, Keivy Mountains, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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