Get to know Rod Griffin.
Useful links:
https://www.gia.edu/gems-gemology/spring-2019-gemnews-boulder-opal-mining-with-rod-griffin
https://opalicon.com
P.J.Joseph's Weblog On Colored Stones, Diamonds, Gem Identification, Synthetics, Treatments, Imitations, Pearls, Organic Gems, Gem And Jewelry Enterprises, Gem Markets, Watches, Gem History, Books, Comics, Cryptocurrency, Designs, Films, Flowers, Wine, Tea, Coffee, Chocolate, Graphic Novels, New Business Models, Technology, Artificial Intelligence, Robotics, Energy, Education, Environment, Music, Art, Commodities, Travel, Photography, Antiques, Random Thoughts, and Things He Like.
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Showing posts with label Rod Griffin. Show all posts
Showing posts with label Rod Griffin. Show all posts
Tuesday, September 17, 2019
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