Manganbelyankinite

manganbelyankinite

belyankinite

gerasimovskite

titanium

Images

Formula: Mn²⁺(Ti,Nb)₅O₁₂.9H₂O
Multiple oxide, manganese-, titanium- and niobium- bearing mineral, forms series with belyankinite and with gerasimovskite
Crystal System: Amorphous
Specific gravity: 2.54 measured
Hardness: 2 to 2½
Streak: Light brown
Colour: Brownish black
Environments

Pegmatites

Localities

The type locality is Pegmatite No. 31, Kedykverpakhk Mountain, Lovozersky District, Murmansk Oblast, Russia.

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