1 April 2007
The use of Fourier-Transform Infrared Spectroscopy (FTIR) in gem identification, with examples of sapphire & jadeite.
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1 October 1994
This article discussed the ruby and spinel mines of Afghanistan/Tajikistan, in an attempt to shed light on one of the great gemological enigmas.
1 June 2008
Since the turn of the millennium, the price of fine spinel has risen at an incredible pace. No longer simply the poor man's ruby, spinel is finally getting the attention it deserves as one of the world's premier gems.
2 October 2006
When it comes to gemology, whether it is practiced in the lab or jewelry store, the importance of traveling to the source cannot be emphasized enough. Not only is information more accurate at the source, but the experiences will also make you a better salesperson.