Acknowledgments

We would like to thank the P. Wild company (Idar-Oberstein, Germany) for providing us with numerous pictures from the mines and supporting us with samples for this research project. Marcus Paul Wild explained us the geological background of some Brazilian tourmaline mines. Brian Pavlik from Brian’s Fine Gems (Austria) granted us permission to us pictures from the Pavlik Gem History Archive (Vienna, Austria) and donated Paraiba tourmalines from the first production years (1988). Gebr. Bank (Idar Oberstein) donated samples from the first mining period in Mozambique and obtained further samples from Paraiba from Bob von Wagoner (Beija-Flor Gems). Tourmalines from Nigeria were received from Steve Jaquith and Arnold Silverberg in Bangkok. Hatta New World company provided us professional jewelry photography and valuable jewelry sets for testing purposes. Without the support from African miners and dealers, we would not have been able to acquire multicolored tourmaline samples from Mozambique. C.H. Lapidaries from Bangkok assisted us for faceting our own rough materials. Miriam Peretti helped for presentation of jewelry sets and Elia Menghini assisted in ED-XRF analysis.
Many thanks to Mr. Tanthadilok for graphic and artwork, Ms Anong Kranpaphai from Anong Imaging for photography and Mr. Michael for preparing this report for the Internet online version, now in translation mode for over a dozen languages (www.gemresearch.ch).

About the Authors

Dr. Peretti is Director of the GRS Gemresearch Swisslab Ltd., Lucerne, Switzerland
adolf@peretti.ch

Dr. Günther is Professor for Trace Elements and Microanalysis at the Laboratory for Inorganic Chemistry, ETH Zurich, Switzerland
guenther@inorg.chem.ethz.ch

K. Hametner is Research Assistant for Trace Elements and Microanalysis at the Laboratory for Inorganic Chemistry, ETH Zurich, Switzerland
hametner@inorg.chem.ethz.ch

W. Bieri (Bsc. EarthSc.) is Research Gemologist at GRS(Thailand) in Bangkok, Thailand
wbieri@gemresearch.ch

Dr. Reusser is Research Scientist at Institute of Mineralogy and Petrography, ETH Zentrum, CH-8092 Zurich, Switzerland
eric.reusser@erdw.ethz.ch

An extended scientific report of this book is published under:

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Literature review on methods

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Literature review on tourmalines from Brazil

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