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Kumtyubeite

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JYJ625190

Kumtyubeite

Description Tabs

Description
Locality: 
Bellerberg, Ettringen, Eifel Mountains, Rhineland-Palatinate, Germany
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.8 × 0.4 × 0.3 cm
Description

Greyish white inclusions of kumtyubeite. Polished section.

 

Rare mineral.

Mineral Data
What's on the rock

Kumtyubeite

Formula: 
Ca5(SiO4)2F2
Strunz: 
9.AF.45
Hardness: 
5.0 - 6.0
Type Locality: 
Lakargi Mt., Verkhnechegemskaya caldera (Verkhni Chegem caldera; Upper Chegem caldera), Kabardino-Balkarian Republic, Northern Caucasus Region, Russia