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Pirssonite & Villiaumite

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ESM218033

Pirssonite & Villiaumite

Description Tabs

Description
Locality: 
Khibiny Massif, Murmansk Oblast, Russian Federation
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 2.2 × 0.8 cm
Description

Colourless pirssonite crystals on matrix with red-brown villiaumite crystals

Mineral Data
What's on the rock

Pirssonite

Formula: 
Na2Ca(CO3)2·2H2O
Strunz: 
5.CB.30
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Type Locality: 
Searles Lake, San Bernardino Co., California, USA

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