Bixbyite

Bixbyite is a manganese iron oxide mineral with chemical formula: (Mn,Fe)2O3. The iron/manganese ratio is quite variable and many specimens have almost no iron. It is a metallic dark black with a Mohs hardness of 6.0 – 6.5. It is a somewhat rare mineral sought after by collectors as it typically forms euhedral isometric crystals exhibiting various cubes, octahedra, and dodecahedra.

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  • Bixbyite Crystals on Topaz

    (May differ to photo) Sale! £6.24

    SIZE: 10-20mm (Range)

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  • Bixbyite Crystals on Topaz

    (Actual as seen) Sale! £7.32

    SIZE:  23 x 26 x 15mm
    (0.91 x 1.02 x 0.59 inches)

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