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  • Cover of Gems & Gemology Fall 1996 issue featuring necklace and earings with large red gems

Fall 1986

  • $15.00
The PDF version of this issue is available at no charge. Visit www.gia.edu

A Simple Procedure to Separate Natural from Synthetic Amethyst on the Basis of Twinning
Robert Crowninghshield, Cornelius Hurlbut, and C.W. Fryer

Pink Topaz from Pakistan
Edward Gübelin, Giorgio Graziani, and A.H. Kazmi

Carbon Dioxide Fluid Inclusions As Proof of Natural-Colored Corundum
John I. Koivula

Contributions to a History of Gemology: Specific Gravity - Origins and Development of the Hydrostatic Method
John Sinkankas

Colombage-Ara Scheelite
Mahinda Gunawardene

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.

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SKU: 438604