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Trapiche and More...

Duncan Pay, November 6, 2015

Colombia’s unique trapiche emeralds exert a fascination for many gemmologists.

Tucson: A Showcase of Coloured Gemstone Innovation

Duncan Pay, April 28, 2016

An overview of the Spring 2016 Gems & Gemology content.

Garnets, Sapphires, Opals and Tarnish on High-Purity Gold

Duncan Pay, February 1, 2016

An overview of the Winter 2015 Gems & Gemology content.

Abstracts; Spring 1991

Dona M. Dirlam

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

E. J. Gübelin, September 1, 1982

This article reports on three gem materials currently being mined in Pakistan.

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