| About the authors
Dr. Peretti is Director of the GRS Gemresearch
Swisslab Ltd., Lucerne, Switzerland
Adolf@Peretti.ch
Dr. Armbruster is Professor of Mineralogical
Crystallography at the University of Berne,
Switzerland
thomas.armbruster@krist.unibe.ch
Dr. Günther is Professor for Trace Elements
and Microanalysis at the Laboratory for Inorganic
Chemistry, ETH Zurich, Switzerland
guenther@inorg.chem.ethz.ch
Dr. Grobéty is Professor of Mineralogy
at the University of Fribourg, Switzerland
Bernard.Grobety@unifr.ch
Dr. Hawthorne is Professor of Mineralogy and
Mr. Cooper Laboratory technician, at the University
of Manitoba, Winnipeg, Canada
frank_hawthorne@umanitoba.ca
mark_cooper@umanitoba.ca
Dr. Simmons is Professor of Mineralogy and
University Research Professor and Mr. Falster
is Seniour Research Technologist, at the University
of New Orleans, Louisiana, USA
wsimmons@uno.edu
afalster@uno.edu
Dr. Rossman is Professor of Mineralogy at the
California Institute of Technology, Pasadena.
USA
grr@gps.caltech.edu
Mr. Laurs is Editor of Gems & Gemology
at GIA in Carlsbad, California, USA
blaurs@gia.edu
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Acknowledgements
The authors are grateful to
all research scientists of different Institutions
for their contributions and to the experts of
the IMA Commission. Special thanks to gem dealers
who supported this research with samples. The
senior author would like to thank Steve Jaquith
and Marc Jobin MJ3 Inc. (NY, USA), G.E.O. International
Co., LTD (Bangkok, Thailand) and Papas Gem Co.,
LTD for supply of samples. This report was prepared
with the help of Anong Imaging (Bangkok), Mr.
Sumet Tanthadilok, IMAGIMAX Animation &
Design Studio (Bangkok, Thailand) and Mr. Saleem
Michael.
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