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Titanium-Coated Tanzanite

Amy Cooper and Nathan Renfro, April 30, 2014

For the first time, GIA's laboratory has examined tanzanite colour-coated with titanium.

These five tanzanite samples (0.39–0.82 ct) proved to be colour-coated with titanium. Photo by Don Mengason.

Article

Titanium-Coated Tanzanite

Amy Cooper and Nathan Renfro, February 7, 2014

For the first time, GIA's laboratory has examined tanzanite colour-coated with titanium.

Coated Tanzanite

Shane F. McClure and Andy H. Shen

The examination of 23 tanzanites coated by an apparently new technique.

Abstract Header from the 2009 issue of Gems & Gemology

Abstracts; Summer 2009

Brendan M. Laurs, Thomas W. Overton

This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

Abstracts; Autumn 1991

Dona M. Dirlam

This article, from the Autumn 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemology.

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