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The heat treatment of corundum involving lattice diffusion of beryllium (Be) at temperatures over 1800°C has become a major issue in the gem trade.
Read MoreBlue diffusion-treated sapphires are becoming more prevalent than ever before.
Read MoreAn overview of the potential effects that heat treatment can have on corundum.
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This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
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