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Polyakovite-(Ce)

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POL922866

Polyakovite-(Ce)

Analysed
Type Locality

Description Tabs

Description
Locality: 
Pit #97, Miass, Chelyabinsk Oblast, Russian Federation
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.4 × 0.3 × 0.2 cm
Description

Pure sample of black, lustrous Polyakovite-(Ce) - extremely rare (two locations only!) Cr dominant member of Chevkinite Group - from Type Locality. Analysed!

Mineral Data
What's on the rock

Polyakovite-(Ce)

Formula: 
(Ce,Ca)4(Mg,Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2(Si2O7)2O8
Strunz: 
9.BE.70
Hardness: 
5.5 - 6.0
Colour: 
Black
Streak: 
Brown
Type Locality: 
Pit No. 97 (N97 Mine), Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

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