Simple gemological tests to separate various species and their varieties in the tourmaline group is difficult. LA-ICP-MS is beyond the reach of most gem testing laboratories in the world. Only a few gem testing laboratories like the GIA can afford and research known gem materials. So hats off to the GIA for sharing the research report.
Useful link:
https://www.gia.edu/gems-gemology/spring-2019-method-determining-tourmaline-species-la-icp-ms
Discover P.J. Joseph's blog, your guide to colored gemstones, diamonds, watches, jewelry, art, design, luxury hotels, food, travel, and more. Based in South Asia, P.J. is a gemstone analyst, writer, and responsible foodie featured on Al Jazeera, BBC, CNN, and CNBC. Disclosure: All images are digitally created for educational and illustrative purposes. Portions of the blog were human-written and refined with AI to support educational goals.
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Showing posts with label Barbara L. Dutrow. Show all posts
Showing posts with label Barbara L. Dutrow. Show all posts
Wednesday, August 14, 2019
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