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Some Tanzanite Imitations

Since at least 1995, various materials have been manufactured to imitate tanzanite in the gem trade.

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Gem-Quality Green Zoisite

A new transparent, gem-quality green zoisite has been discovered in the Merelani Hills of mineral-rich Tanzania.

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Abstract Header from the 2009 issue of Gems & Gemology
Abstracts; Summer 2009

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.

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