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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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Jadeite boulder from Itoigawa, Japan
Japanese Jadeite: History, Characteristics and Comparison with Other Sources

Examines the sources, colour, texture and chemical composition of jadeite from Japanese deposits.

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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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A Survey of the Gemstone Resources of China

China has identified many deposits with significant potential to produce gemstones; various species are discussed.

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Some Observations on the Treatment of Lavender Jadeite

This article discusses the results of an experiment conducted on heat-treated lavender jadeite.

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Gemmological characteristics of coated jadeite jade

Analyses the effects of coating on green jadeite specimens using DiamondView imaging, microscopy, spectroscopy and Raman spectrophotometry.

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New or Unusual Gem Materials Encountered in the Institute’s Gem Trade Laboratories

One of the favourites for Gems & Gemology readers is the Lab Notes column, the brief reports in each issue describing notable or unusual gem materials that have made their way to GIA’s laboratory.

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Nephrite Pendant
Nephrite Jade from Guangxi Province, China

Introduces the Chinese nephrite mine in Hechi and characterises the “band” and dendritic patterns found in this material.

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Gemstone Carving in China: Winds of Change

Chinese master carvers have produced some of the world's most sophisticated gemstone carvings.

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Identification of Bleached and Polymer-Impregnated Jadeite

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

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