Trapiche and More...
Colombia’s unique trapiche emeralds exert a fascination for many gemmologists.
Tucson: A Showcase of Coloured Gemstone Innovation
An overview of the Spring 2016 Gems & Gemology content.
Garnets, Sapphires, Opals and Tarnish on High-Purity Gold
An overview of the Winter 2015 Gems & Gemology content.
Abstracts; Spring 1991
This article, from the Spring 1991 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
Gemstones of Pakistan: Emerald, Ruby and Spinel
This article reports on three gem materials currently being mined in Pakistan.