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Betalomonosovite

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SKY653847

Betalomonosovite

Classic Locality

Description Tabs

Description
Locality: 
Rasvumchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.5 × 2 cm
Description

Tan crystals of the very rare mineral betalomonosovite from one of the very few known localities worldwide.

Associated minerals are lamprophyllite and nepheline.

Mineral Data
What's on the rock

Betalomonosovite

Formula: 
Na64Ti4(Si2O7)2[PO3(OH)][PO2(OH)2]O2(OF)
Group Parent: 
Lomonosovite
Strunz: 
9.BE.32
Crystal System: 
Triclinic
Colour: 
Yellowish-brown
Type Locality: 
Tyul'bnyunuai River Valley, Lovozero Massif, Kola Peninsula, Northern Region, Russia...
Isostructural with: 
Lomonosovite

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