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Gemological Abstracts JOURNAL ARTICLE published 1 April 1982 in Gems & Gemology |
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Gem News JOURNAL ARTICLE published 1 January 1995 in Gems & Gemology |
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Letters JOURNAL ARTICLE published 1 September 2000 in Gems & Gemology |
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The Dr. Edward J. Gübelin Most Valuable Article Award JOURNAL ARTICLE published 1 April 2011 in Gems & Gemology |
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Gem News JOURNAL ARTICLE published 1 September 1997 in Gems & Gemology |
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Book Reviews JOURNAL ARTICLE published 1 April 2005 in Gems & Gemology |
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Gem Trade Lab Notes JOURNAL ARTICLE published 1 January 1984 in Gems & Gemology |
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The Gemological Properties of Chatham Flux-Grown Synthetic Orange Sapphire and Synthetic Blue Sapphire JOURNAL ARTICLE published 1 October 1982 in Gems & Gemology |
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Gem Trade Lab Notes JOURNAL ARTICLE published 1 September 1998 in Gems & Gemology |
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Gemological Abstracts JOURNAL ARTICLE published 1 September 2007 in Gems & Gemology |
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Gem Trade Lab Notes JOURNAL ARTICLE published 1 April 1983 in Gems & Gemology |
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The Challenges of Cutting a Large Gem Opal Rough JOURNAL ARTICLE published 1 August 2016 in Gems & Gemology |
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Gemological Abstracts JOURNAL ARTICLE published 1 June 1989 in Gems & Gemology |
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Visible Absorption Spectra of Colored Diamonds JOURNAL ARTICLE published 1 May 2015 in Gems & Gemology |
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Emeralds From the Fazenda Bonfim Region, Rio Grande do Norte, Brazil JOURNAL ARTICLE published 1 February 2012 in Gems & Gemology |
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Gem News JOURNAL ARTICLE published 1 January 1984 in Gems & Gemology |
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Gemological Abstracts JOURNAL ARTICLE published 1 June 1982 in Gems & Gemology |
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Gem-Quality Friedelite from the Kalahari Manganese Field Near Kuruman, South Africa JOURNAL ARTICLE published 1 January 1982 in Gems & Gemology |
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Book Reviews JOURNAL ARTICLE published 1 January 1981 in Gems & Gemology |
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Book Reviews JOURNAL ARTICLE published 1 September 1990 in Gems & Gemology |