Summer 1991
- $15.00
The PDF version of this issue is available at no charge. Visit www.gia.edu
Fracture Filling of Emeralds: Opticon and Traditional "Oils"
Robert C. Kammerling, John I. Koivula, Robert E. Kane, Patricia Maddison, James E. Shigley, and Emmanuel Fritsch
Emeralds from the Ural Mountains, USSR
Karl Schmetzer, Heinz-Jürgen Bernhardt, and Rudolf Biehler
Treated Andamooka Matrix Opal
Grahame Brown
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout.
Fracture Filling of Emeralds: Opticon and Traditional "Oils"
Robert C. Kammerling, John I. Koivula, Robert E. Kane, Patricia Maddison, James E. Shigley, and Emmanuel Fritsch
Emeralds from the Ural Mountains, USSR
Karl Schmetzer, Heinz-Jürgen Bernhardt, and Rudolf Biehler
Treated Andamooka Matrix Opal
Grahame Brown
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout.
SKU: 439103
