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Fall 2000, Volume 36, Issue 3


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Gem News


  •  DIAMONDS
    - APEC 2000 International Jewellery Conference features diamonds, education, and treatments
    - De Beers’s newly stated direction
  • COLORED STONES AND ORGANIC MATERIALS
    - Mosaic ammonite
    - Gemmy anhydrite from Iran
    - Aquamarine from southeast India
    - Coral exploration resumes in Hawaii
    - Fresnoite: A first examination
    - Gemological Presentations at the 31st International Geological Congress
    - Visit to a Malagasy lapidary facility
    - Rubies (and sapphires) from Colombia
    - Lavender sugilite with green spots
    - Paraíba tourmaline update
    - Tourmaline with an apparent change-of-color in one pleochroic direction
  • SYNTHETICS AND SIMULANTS
    - Magnetic hematite imitation in jewelry
    - Curved quadruplet boulder opal imitations
  • MISCELLANEOUS
    - Concave faceting technique developed for sapphires
  • ANNOUNCEMENTS
    - Visit Gems & Gemology staff in Tucson
    - GANA exhibit at the Carnegie Museum
    - GAGTL Conference 2000
    - 1st Brazilian Symposium on the Treatment and Characterization of Gems
    - Fabergé exhibit in Tucson
    - Hong Kong International Jewellery Show
    - Diamond exposition in Paris
    - Opal Symposium 2001
    - ICA Congress
    - Geochemistry and Mineralogy of Gemstones Symposium

Gem News Editors:
Mary L. Johnson, John I. Koivula, Shane F. McClure,
and Dino DeGhionno, GIA Gem Trade Laboratory, Carlsbad, California
 
Contributing Editors:
Emmanuel Fritsch, IMN, University of Nantes, France
Henry A. Hänni, SSEF, Basel, Switzerland
Karl Schmetzer, Peterhausen, Germany





Appears on pages 260-274

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