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! £2.47

    SIZE: 5-15mm (Range)

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  • Corundum

    (Actual as seen) Sale! £3.91

    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! £29.70

    SIZE:   45 x 44 x 23mm
    (1.77 x 1.73 x 0.91 inches)

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