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Summer 2008, Volume 44, Issue 2

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Lab Notes


DIAMOND

  • With Color Contributed by the 594 nm Center?
  • Subtle Flash-Effect Colors in a Filled Diamond
  • "Unidentified Clarity Characteristic" in Diamond

Gem-quality CVD SYNTHETIC DIAMOND with Traces of Boron

Bleached Pinctada Margaritifera CULTURED PEARLS in Non-"Chocolate" Colors

Blue-Green PLAGIOCLASE FELDSPAR, Possibly Colored by Copper

Unusual Green Fluid Inclusions in QUARTZ

Inclusions within Inclusions in RUBY

Blue SAPPHIRE, with Unusually High Concentration of Rare-Earth Elements

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