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The Glory of Green Gems

Sharon Bohannon and Peggy Tsiamis, June 12, 2015

Green gemstones, which can uplift and heal our spirits, have been popular gem choices ever since we began to adorn ourselves with jewellery.

Article

Spring 2015 G&G Examines Blue Spinel, Chinese Jewellery Design and the Latest in Synthetics

Russell Shor, June 12, 2015

G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.

Amethyst from Boudi, Morocco

Fabrizio Troilo, Abdelghani El Harfi, Salahaddine Mouaddib, Erica Bittarello, and Emanuele Costa, April 30, 2015

An introduction to Moroccan amethyst, which features distinctive color zoning and inclusions.

Amethystine Chalcedony

James E. Shigley and John I. Koivula, December 1, 1985

"Damsonite," the trade name for a new type of chalcedony, is analysed and described.

Artificially Induced Colour in Amethyst-Citrine Quartz

Kurt Nassau, March 1, 1981

A new and rather unusual gem material and possible treatments are discussed.