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What is a gem? And why painite from Myanmar can fetch US$60,000 per carat

  • Written by Andrew Christy, Senior Curator (Mineralogy) at the Queensland Museum and Lecturer, The University of Queensland
The first three Natural History Museum painites – including one in its natural state with rubies that had been sitting in their collection for years. It had initially been misidentified as the much less valuable tourmaline.© The Trustees of the Natural History Museum, London, Author provided

My favourite gem is an occasional series where...

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