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Bismutocolumbite

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ESM606619

Bismutocolumbite

Type Locality

Description Tabs

Description
Locality: 
Malkhan, Krasnyi Chikoy, Zabaykalsky Krai, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.8 × 3 × 2 cm
Description

Black bismutocolumbite grains in matrix

Mineral Data
What's on the rock

Bismutocolumbite

Formula: 
Bi(Nb,Ta)O4
Strunz: 
4.DE.30
Crystal System: 
Orthorhombic
Hardness: 
5.5
Type Locality: 
Danburitovaya pegmatite vein, Malkhan pegmatite field (Malchan; "Malechansk"), Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia...