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The Rutilated Topaz Misnomer

John I. Koivula, June 1, 1987

An examination of so-called "rutilated topaz."

Abstracts; Summer 1991

Dona M. Dirlam

From the Summer 1991 issue of Gems & Gemology, a summary of important gemology-related articles published in other journals.

“Boomerang” Inclusion in a Rough Topaz

Shu-Hong Lin, Tsung-Ying Yang, Kai-Yun Huang, and Yu-Shan Chou, August 23, 2022

A unique twinned crystal inclusion resembles a boomerang in a rough topaz.

Pink Topaz from Pakistan

Edward Gübelin, Giorgio Graziani, September 1, 1986

Pakistan has begun to produce fine gem-quality pink topaz.

Sphalerite in Topaz

Jonathan Muyal, Ziyin Sun, Nathan Renfro, and Aaron Palke, November 7, 2016

The first documented example of sphalerite as a crystal inclusion in colorless topaz.

Complex Fluid Inclusion in Topaz

Nathan Renfro and John I. Koivula, May 13, 2022

Examination of blue topaz reveals a three-phase fluid inclusion with remarkable behavior.