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Vuoriyarvite-K

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ESM580821

Vuoriyarvite-K

Rare Mineral

Description Tabs

Description
Locality: 
Kaskasnyunchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 2 × 1.5 cm
Description

Tiny white to very pale pink vuoriyarvite K crystals on matrix

Mineral Data
What's on the rock

Vuoriyarvite-K

Formula: 
K2(Nb,Ti)2(Si4O12)(O,OH)2·4H2O
Strunz: 
9.CE.30b
Crystal System: 
Monoclinic
Hardness: 
4.5
Colour: 
White
Streak: 
White
Type Locality: 
Vuoriyarvi alkaline-ultrabasic massif, Northern Karelia, Murmanskaja Oblast', Northern Region, Russia...