Corundum

Corundum is a crystalline form of aluminium oxide with traces of iron, titanium and chromium. It is a rock-forming mineral. It is one of the naturally transparent materials, but can have different colours when impurities are present. Transparent specimens are used as gems.

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  • Corundum

    (May differ to photo) Sale! £2.64

    SIZE: 5-15mm (Range)

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  • Corundum

    (Actual as seen) Sale! £4.20

    SIZE:  12 x 7 x 7mm
    (0.47 x 0.28 x 0.28 inches)

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  • Corundum var. Ruby, (Rare)

    (Actual as seen) Sale! £31.20

    SIZE:   35 x 38 x 40mm
    (1.38 x 1.5 x 1.57 inches)

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