Research TrackCOLORED STONES AND PEARLS 1

Tuesday, October 9, 2018
7:30 AM - 8:30 AM
Sunset Ballroom


Overview

Tourmaline: A Gemstone's Guide to Geologic Evolution


Details

Tourmaline offers an astonishing array of insights into the earth’s geological processes, especially through its rich variety of chemical compositions. These fingerprints reveal the complete picture of a tourmaline’s growth environment and processes. This talk will examine how established and cutting-edge techniques can be used to unravel the story recorded in each specimen.


Speakers

DR. BARBARA DUTROW

Adophe G. Gueymard Professor of Geology

Louisiana State University, Department of Geology and Geophysics

TOURMALINE: A GEMSTONE’S GUIDE TO GEOLOGIC EVOLUTION

Biography

Dr. Barbara L. Dutrow is a petrologic mineralogist with research interests spanning continental scale tectonometamorphism to micrometer scale crystallochemical interactions in minerals. Her research combines geologic field mapping, geochemical and mineral chemical data, theoretical analyses and experimental work. Dr. Dutrow is the co-author of the Manual of Mineral Sciences, a best-selling textbook about mineralogy. She joined the GIA Board of Governors in November 2016, and helps guide the Institute in its mission to protect the gem-buying public.


DR. EMMANUEL FRITSCH

University Professor

Institut des Matériaux Jean Rouxel and University of Nantes, France

“BOEHMITE NEEDLES” IN CORUNDUM ARE ROSE CHANNELS

Biography

Dr. Emmanuel Fritsch is a professor of physics at the University of Nantes in western France. He received a geological engineering degree from ENSG and a PhD from Paris VII. He then worked at GIA from 1986 to 1995 before joining the Institut des Matériaux Jean Rouxel (IMN-CNRS). He has authored more than 350 articles and received many awards, including the 2013 Bonnano Award for Excellence in Gemology.


MARTIN STEINBACH

Manager

Steinbach - Gems with a Star

AN OVERVIEW OF ASTERIATED GEMS: FROM COMMON STAR SAPPHIRE TO RARE STAR AQUAMARINE TO ONE-OF-A-KIND STAR ZIRCON

Biography

Martin Steinbach graduated in 1982 as the first German gemologist at AIGS, Thailand. As a gem merchant, collector, and lecturer, he has traveled the world in search of star gems. With the 2017 publication of his book Asterism—Gems with a Star, he has fulfilled a life’s dream. Mr. Steinbach aims to create a new philosophy and new markets for the 60 or so asteriated gems.