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Gem Pegmatites of Minas Gerais, Brazil: Exploration, Occurrence and Aquamarine Deposits

Keith Proctor, June 1, 1984

First in a series, this article reviews the exploration for gemstones and mining methods in Minas Gerais, Brazil.

Polymer-Filled Aquamarine

Li Jianjun, Sun Yuan, Hao Wangjiao, Luo Han, Cheng Youfa, Liu Huafeng, Liu Ying, Ye Hong, and Fan Chengxing

The authors have encountered hundreds of polymer-filled aquamarines in the Chinese jewellery market.

Topaz, Aquamarine and Other Beryls from Klein Spitzkoppe, Namibia

Bruce Cairncross, Ian C. Campbell, June 1, 1998

This article presents, for the first time, both gemmological and geologic information on topaz, aquamarine and other beryls from miarolitic pegmatites at Namibia’s historic Klein Spitzkoppe mineral locality.

A Status Report on Gemstones from Afghanistan

Gary W. Bowersox, December 1, 1985

An overview of the plentiful and various gem materials being discovered and produced in Afghanistan.

Hydrothermally Grown Synthetic Aquamarine Manufactured in Novosibirsk, USSR

Karl Schmetzer, September 1, 1990

Physical, chemical, spectroscopic and microscopic characteristics of a sample of hydrothermally grown synthetic aquamarine from the USSR are presented.

Aquamarine from the Masino-Bregaglia Massif, Central Alps, Italy

Rosangela Bocchio, Ilaria Adamo, and Franca Caucia

Aquamarine from granitic pegmatites of the Masino-Bregaglia Massif, Central Alps, Italy.

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