Fourier transform infrared (FTIR) spectroscopy is considered a useful tool in revealing heat treatment of corundum. The report by GIA researchers is a must read for gemologists, heat treatment specialists, gem dealers, and consumers.
Fourier transform infrared (FTIR) spectroscopy is considered a useful tool in revealing heat treatment of corundum. The report by GIA researchers is a must read for gemologists, heat treatment specialists, gem dealers, and consumers.
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