Gemstone Gathering
The 11th Gemstone Gathering took place on March 26th, 2008
about "Micro Raman & PL Spectroscopy & Their use in Gem Identification"
By Mr. Garry Du Toit
(Manager Gem Identification of GIA Laboratory Bangkok)
GIA’s eleventh Gemstone Gathering has presented by Mr. Garry Du Toit. The topic was, “Micro Raman and Photoluminescence Spectroscopy and their uses in Gem Identification.”
Garry Du Toit’s gemological career began in Bangkok, Thailand in 1990. Before his recent move back to Thailand in 2007 to join GIA Laboratory Bangkok, Garry worked as the Laboratory Manager and one of the founding employees at the AGTA GTC (American Gem Trade Association, Gem Testing Center) in New York, USA.
Garry has authored and co-authored numerous articles of a gemological nature which have appeared in various trade and industry related publications. He is perhaps best known as an expert in Raman Spectroscopy and has been working with Raman Imaging Spectrometers since they first arrived in gemological laboratories in 1994. In addition to this Garry has extensive experience in identifying minerals, components of rocks and treatments involving oils, resins and waxes used to clarity enhance emeralds.
