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![]() Aluminium
Corundum is the most common naturally-occurring crystalline form of aluminium oxide. Much less-common rubies and sapphires are gem-quality forms of corundum with their characteristic colors due to trace impurities in the corundum structure.
Based on the 1997 book
Director: Edward Thomas. Also starred Sadie Frost, Steven Berkoff & Keith Allen
Corundum is the most common naturally-occurring crystalline form of aluminium oxide. Much less-common rubies and sapphires are gem-quality forms of corundum with their characteristic colors due to trace impurities in the corundum structure. |
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