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Summer 2006, Volume 42, Issue 2

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Gem News International


COLORED STONES AND ORGANIC MATERIALS

  • Alaskan amber.
  • Update on iridescent andradite from Mexico.
  • Two unusual star emeralds.
  • Faceted blue euclase from Colombia.
  • Color-change fluorite.
  • Herderite from Pakistan.
  • Jeremejevite from Myanmar and Sri Lanka.
  • Pink opal from Monte Rosa, Peru.
  • Update on prehnite from Australia.
  • Prehnite from Mali.
  • Natural sapphire with unusual inclusions.
  • Sillimanite from India resembling moonstone.
  • Sphene from Afghanistan.
  • Uvite-dravite tourmaline from Morogoro, Tanzania.
  • Triploidite from China.
  • Väyrynenite from Afghanistan.

SYNTHETICS AND SIMULANTS

  • Diffusion-treated synthetic sapphire.

TREATMENTS

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