Manganbabingtonite

inosilicate

babingtonite

Formula: Ca2Mn2+Fe3+Si5O14(OH)
Inosilicate (chain silicate), rhodonite group, forms a series with babingtonite
Specific gravity: 3.452
Hardness: 5½ to 6
Streak: Brownish
Colour: Black, brownish black
Environments:

Metamorphic environments

At the type locality, the Rudnyi Kaskad deposit, Krasnoyarsk Krai, Russia, manganbabingtonite occurs in thin stringers in amphibolised garnet - pyroxene - magnetite skarn associated with an iron deposit. Associated minerals include epidote, calcite and quartz.

At the Iron Cap mine, Arizona, USA, babingtonite replaces hedenbergite - johannsenite skarn, and is associated with ilvaite, andradite, epidote, thaumasite, calcite, quartz, pyrite, galena and sphalerite.

Common impurities: Ti,Al,Mg,Na,K,F,Cl,H20,C

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