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Freudenbergite

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SKY540542

Freudenbergite

Rare Mineral

Description Tabs

Description
Locality: 
Kaskasnyunchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1 × 0.6 cm
Description

Black microcrystals of the very rare mineral fredenbergite from one of the only five known localities worldwide. Associated mineral is orange-brown rutile. Ex-Excalibur Mineral Company specimen with label included ( see photo).

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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