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Freudenbergite

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SKY615627

Freudenbergite

Rare Mineral

Description Tabs

Description
Locality: 
Kaskasnyunchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.2 × 0.2 × 0.2 cm
Description

One small specimen of black microcrystals of the very rare mineral freudenbergite in a capsule, from one of the only five known localities worldwide. Associated mineral is orange-brown rutile. 

Outstanding under the microscope due to the contrast of both species !

Mineral Data
What's on the rock

Freudenbergite

Formula: 
Na2(Ti,Fe)8O16
Strunz: 
4.CC.10
Hardness: 
0.0
Type Locality: 
Michelsberg Quarry, Katzenbuckel, Eberbach, Odenwald, Baden-Württemberg, Germany

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