An Examination of Four Important Gems
C. W. Fryer and John I. Koivula, June 1, 1986
Several famous and historical gemstones in the Smithsonian's collection are examined and reported on.
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A New Method for Detecting Be Diffusion-Treated Sapphires: Laser-Induced Breakdown Spectroscopy (LIBS)
Michael S. Krzemnicki, Henry A. Hänni,, December 1, 2004
This article describes the first application of laser-induced breakdown spectroscopy (LIBS) to gemmology.
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