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97.45-carat Imperial Topaz
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Topaz History and Lore

Most authorities agree that the name topaz comes from Topazios, the old Greek name for a small island in the Red Sea, now called Zabargad. (The island never produced topaz, but it was once a source of peridot, which was confused with topaz before the development of modern mineralogy.)

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And Then Came the Fantasy Cut

Once upon a time, gem cutting was a strict craft bound by centuries of tradition. Then Bernd Munsteiner (b. 1943) invented the fantasy cut.

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Topaz, Aquamarine, and Other Beryls from Klein Spitzkoppe, Namibia

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

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An Update on Imperial Topaz from the Capao Mine, Minas Gerais, Brazil

The Capao mine is one of the oldest and most productive fully mechanized Imperial topaz mines in the historic Ouro Preto area of Minas Gerais, Brazil.

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Reactor-Irradiated Green Topaz

Examination of samples of faceted "Ocean green" topaz reveals that this material has been irradiated in a nuclear reactor.

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Thermal Alteration of Inclusions in "Rutilated" Topaz

Faceted colorless topaz containing acicular inclusions has been offered for sale as "rutilated" topaz.

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"Modern" Jewelry: Retro to Abstract

A review of mid-20th century jewelry styles.

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Gem-Bearing Pegmatites: A Review

A survey of the current gemological knowledge of pegmatites, including the gem varieties aquamarine, tourmaline, and topaz.

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The Capão Topaz Deposit, Ouro Preto, Minas Gerais, Brazil

This article examines the history of the Ouro Preto district as well as the geology of the area and occurrence of the topaz.

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Sri Lanka: The Gem Island

An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.

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