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Nastrophite & Collinsite

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BCK621433

Nastrophite & Collinsite

Type Locality

Description Tabs

Description
Locality: 
Kovdor Zheleznyi Mine, Kovdor Massif, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.6 × 1.8 cm
Description

You are bidding on a small sample filled with numerous, perfect tetrahedra of rare nastrophite on matrix with small bladed collinsite crystals and other minerals. Very good sample of this rare phosphate. 

Mineral Data
What's on the rock

Nastrophite

Formula: 
Na(Sr,Ba)PO4·9H2O
Strunz: 
8.CJ.15
Hardness: 
2.0
Type Locality: 
Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Collinsite

Formula: 
Ca2(Mg,Fe2+)(PO4)2·2H2O
Strunz: 
8.CG.05
Hardness: 
3.0 - 3.5
Type Locality: 
Francois Lake phosphate occurrence, Francois Lake, Omenica Mining Division, British Columbia, Canada

Seller Information

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