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Villiaumite & Natrite

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RPN97353

Villiaumite & Natrite

Rare Mineral

Description Tabs

Description
Locality: 
Koashva Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 5.3 × 2.6 cm
Description

Very rare combination of villiaumite with white matrix of natrite. Villiaumte has a good color and lustre.

Mineral Data
What's on the rock

Villiaumite

Formula: 
NaF
Strunz: 
3.AA.20
Crystal System: 
Isometric
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Rouma Island (Roume Island; Roma Island; Ruma Island), Los Archipelago (Los Islands), Guinea

Natrite

Formula: 
Na2CO3
Strunz: 
5.AA.10
Crystal System: 
Monoclinic
Hardness: 
1.0 - 1.5
Streak: 
White
Type Locality: 
Olenii Creek (Olenii Ruchei; Oleny Ruchei), Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...
minhunter

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