Mark Bishop

Analytical Chemistry and

Signal Acquisition/Analysis

A Few Gems

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Emerald Emerald Emerald

Formula: Be3Al2Si6O18

Common Gems:
  • Emerald (trace Cr III)
  • Aquamarine (trace Fe II and Fe III)
  • Yellow Beryl (trace Fe III)
  • Morganite (trace Mn II)
  • Red beryl (trace Mn III)

ID may be exposed