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Formula: Mg5(BO3)(OH)5Cl2.4H2O
Hydrated monoborate
Crystal system: Monoclinic
Specific gravity: 2.32 measured
Hardness: 3
Streak: White
Colour: Snow-white
Solubility: Readily dissolved by acids
Environments
Although shabynite was approved as long ago as 1979, to date (August 2025) it has been reported only from
the type locality.
Localities
At the type locality, the Korshunovskoye iron deposit, Zheleznogorsk-Ilimsky, Nizhneilimsky District, Irkutsk Oblast,
Russia, shabynite occurs in veinlets, to 1 cm thick, in a
brecciated dolomitic
marble in the skarn
magnetite deposit. Associated minerals include
dolomite, korshunovskite,
ekaterinite, dashkovaite,
iowaite and halite
(HOM, Mindat).
Shabynite from the Korshunovskoye iron deposit -
Image
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