• Summer 1993

Summer 1993

  • $15.00
The PDF version of this issue is available at no charge. Visit
Flux-Grown Synthetic Red and Blue Spinels from Russia
Sam Muhlmeister, John I. Koivula, Robert C. Kammerling, Christopher P. Smith, Emmanuel Fritsch, and James E. Shigley

Emeralds and Green Beryls of Upper Egypt
Robert H. Jennings, Robert C. Kammerling, Andre Kovaltchouk, Gustave P. Calderon, Mohamed K. El Baz, and John I. Koivula

Reactor-Irradiated Green Topaz
Charles E. Ashbaugh III and James E. Shigley

Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

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SKU: 93su