Robert Crowninghshield, Cornelius Hurlbut, and C.W. Fryer
Pink Topaz from Pakistan
Edward G¸belin, 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 GravityóOrigins and Development of the Hydrostatic Method
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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