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31-10-2009, 14:20
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Dr. Rossman Speaks
 6 May 2009 Dr. Rossman Speaks about copper diffusion of andesine! The long awaited report on the research regarding Chinese red andesine!  Over the past year consumers and the gemstone industry have waited with great anticipation for the promised report from world renowned scientist, Dr. George Rossman, professor of mineralogy at the Division of Geological and Planetary Sciences at Caltech (California Institute of Technology), regarding Caltech research on the copper diffusion of andesine. At the 852nd meeting of The Mineralogical Society of Southern California held on Friday, March 13, 2009, Dr. Rossman made a presentation of his findings. We have attached the PDF file of the minutes of this meeting that includes an overview of the presentation starting on Page 3. Here is a synopsis of the important points of that report that directly affect consumers and the industry......... Please follow the link below to the .PDF formatted report by the ISG. Dr. Rossman Speaks on Copper Diffusion of Andesine by Robert James FGA, GG If you do not have the PDF v. 5.0 or later reader program: Adobe Reader  Through My Microscope The world of gemstones from a unique perspective by Robert James FGA, GG The microscopic world of gemstones is rarely seen by consumers. Through My Microscope takes you on a 110 page journey into the inner world of gemstones that only a microscope can show you, and only an expert can guide you. From up close images of ancient bugs in amber to strange inclusions that seem out of this world, this book takes you on a tour that most never get a chance to see. Don't miss this opportunity to travel through rare and unusual gemstones from the expert perspective of Robert James, President of the International School of Gemology. Proceeds from the sale of this book go toward the legal defense of the ISG against the DSN lawsuit. Now available as a signed personal copy from the ISG Gemology Store. This 110 page full color book offers a look at the world of gemstones with images taken by the ISG over the past year. To get your signed copy click on the cover image at left. Soft and hardcover available. Send us your thoughts, suggestions, and responses to: ©2009 International School of Gemology . ALL RIGHTS RESERVED All images are taken using the ISG Student Reference Collection of gemstones in the ISG office. We do urge and support sharing of this information in its entirety, with copyright notices intact, to others who are interested in the study of gemology. Jeweler’s Associations are welcome to distribute to your members. </SPAN> Take a 10 minute video tour of the 
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