• Fall 1989

Fall 1989

  • $15.00
The PDF version of this issue is available at no charge. Visit
Polynesian Black Pearls
Marisa Goebel and Dona Mary Dirlam

The Capoeirana Emerald Deposit Near Nova Era, Minas Gerais, Brazil
David Stanley Epstein

The Growth of Brazil-Twinned Synthetic Quartz and the Potential for Synthetic Amethyst Twinned on the Brazil Law
John I. Koivula and Emmanuel Fritsch

Thermal Alteration of Inclusions in "Rutilated" Topaz
Robert C. Kammerling and John I. Koivula

Chicken-Blood Stone from China
Wang Fuquan and Guo Jingfeng

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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