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Polyakovite-(Ce)
Type Locality
Pit No. 97 (N97 Mine), Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia
Mineral Data
(Ce,Ca)
4
(Mg,Fe
2+
)(Cr
3+
,Fe
3+
)
2
(Ti,Nb)
2
(Si
2
O
7
)
2
O
8
Strunz:
9.BE.70
Physical Properties
Colour:
Black
Streak:
Brown
Hardness:
5.5 - 6.0
Synonyms
Synonyms:
Polyakovite-Ce, Polyakovite Ce and Polyakovite - Ce
