Research Article Search Results
The Gemological Properties of the De Beers Gem-Quality Synthetic Diamonds
The History and Gemology of Queen Conch "Pearls"
This article reviews the history of the conch "pearl," discusses S. gigas and its fisheries, and examines the gemological properties and other characteristics of this attractive material.
The Seven Types of Yellow Sapphire and Their Stability to Light
Gemstone Durability: Design to Display
"Modern" Jewelry: Retro to Abstract
Fall 1986 G&G Lab Notes
Carbon Dioxide Fluid Inclusions as Proof of Natural-Colored Corundum
An important clue in identifying natural-colored corundum is the presence of carbon dioxide fluid inclusions.
An Examination of Four Important Gems
Several famous and historical gemstones in the Smithsonian's collection are examined and reported on.
The Elahera Gem Field in Central Sri Lanka
The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.
Summer 1986 G&G Lab Notes
The Coscuez Mine: A Major Source of Colombian Emeralds
The Coscuez mine, one of a number in Colombia, is rapidly gaining significance as a major source of fine emeralds.
