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Spring 2007, Volume 43, Issue 1

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Lab Notes


DIAMOND

  • Blue Diamonds Showing Multiple Colors of Phosphorescence
  • Diamond with “Etched Dislocation Loops”
  • HPHT-Annealed Yellow-Orange Diamond with a Strong ~480 nm Absorption Band
  • Translucent Greenish Yellow Diamonds
  • Unusual Natural-Color Black Diamond

SYNTHETIC DIAMOND, Possibly Grown at Higher Temperatures

Heat-Treated Blue SAPPHIRE with Unusual Dendrites

YTTRIUM ALUMINUM GARNET (YAG) with a Dislocation Spiral

 

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