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Chinese carving
Origin Determination of Dolomite-Related White Nephrite through Iterative-Binary Linear Discriminant Analysis

A technique for origin identification based on statistical analysis and LA-ICP-MS spectrometry.

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Article
Spring 2015 G&G Examines Blue Spinel, Chinese Jewelry Design and the Latest in Synthetics

G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.

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Identification of Bleached and Polymer-Impregnated Jadeite

Article, Identification, Jadeite, “Bleaching”, Polymer Impregnation, Jade Treatments

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The Jade Enigma

An examination of the various simulants of of nephrite and jadeite, and how to separate them from jade.

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Faceted wurtzite
Rare Faceted Wurtzite

A stone submitted for identification is revealed to be the first wurtzite examined by the GIA lab.

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Abstracts; Summer 1991

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

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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 & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

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