Spring 2015 G&G Examines Blue Spinel, Chinese Jewellery Design and the Latest in Synthetics
G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
Dyed Green Marble Imitating Jadeite
What appeared to be high-quality jadeite was actually dyed green marble with calcite as the main mineral.
Dyed Bone as a Red Coral Imitation
A specimen presenting as red coral is revealed to be dyed bone.
The Jade Enigma
An examination of the various simulants of of nephrite and jadeite, and how to separate them from jade.
Abstracts; Summer 1991
From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.