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Abstracts; Summer 1991

Dona M. Dirlam

From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.

Wollastonite in Devitrified Glass Imitating Horsetail Inclusions in Demantoid Garnet

Ungkhana Atikarnsakul, August 9, 2018

A yellowish green specimen with horsetail-like inclusions is found to be glass rather than demantoid garnet.

Spinel submitted as diamond

Martha Altobelli, Paul Johnson, and Kyaw Soe Moe, January 31, 2014

It is a rare occurrence when a diamond simulant submitted to a GIA laboratory turns out to be a natural gemstone.

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.