Australia
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Lenny Cram's Opal Mine | Fun Down Under
The believe-it-or-not story of Australia's Lenny Cram and his opal mine in a mason jar.
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World Sapphire Market Update | 2020 | Lotus Gemology
The world sapphire market has changed dramatically in the past 40 years. The authors review the famous sources of the past and look at the current situation in sapphire around the globe.