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Spring 1995, Volume 31, Issue 1


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Gem News


DIAMONDS

  • New diamond cuts

COLORED STONES

  • Large apatites from Madagascar
  • Diaspore from Turkey
  • Cat's-eye and trapiche emeralds
  • Emerald necklaces fashioned in India
  • Garnets from Mali
  • Fashioned natural glasses
  • Fashioned "rainbow" hematite
  • Iolite and other gems from Madagascar
  • Iolite and other Orissa gems
  • More meteorite products
  • Miscellaneous notes on peridot
  • "Strawberry" quartz and other Russian gems
  • Miscellaneous notes on sapphires
  • Sapphires from Tanzania
  • Faceted sphalerite and other collector stones from Canada
  • Swarovski debuts machine-cut gems
  • Topaz and beryl from the Ukraine
  • Miscellaneous notes on tourmaline

INSTRUMENTATION

  • Inclusion-viewing system
  • New magnet for gem testing

SYNTHETICS AND SIMULANTS

  • Faceted Kashan synthetic rubies and sapphires
  • More Russian synthetics and simulants
  • "Recrystallized" synthetics
  • Synthetic zincite from Poland
  • New source of synthetic emeralds

ENHANCEMENTS

  • Diffusion-treated sapphires

 


Appears on pages 59-71

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