This document provides the publication information for Gems & Gemology

This article, from the Spring 1994 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

Gem-quality bright blue to green “Paraíba”-type Cu-bearing tourmaline is now known from deposits in Africa (Nigeria and Mozambique), in addition to three commercial localities in Brazil (in Paraíba and Rio Grande do Norte States).

Among the collection assembled by Dr. Edward Gübelin are a number of uncommon gemstones from many worldwide localities.

This document provides the publication information for Gems & Gemology

纯净的锆石虽然无色，但通常呈黄褐色至棕色。它也存在红色、蓝色、紫色和绿色等颜色。由于其高亮度和高色散性，无色锆石有时被用作珠宝中钻石的替代品。

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The February 2012 discovery of high-quality blue sapphires at Thammannawa near Kataragama in southeastern Sri Lanka has intensified gem mining and exploration in the surrounding area and all over the country.

Transparent rhodonite is considered one of the most difficult of all gems to facet because of its perfect cleavage and brittle, uneven fracture.

无论您是开始新的职业生涯或是职业旅程迈出下一步，GIA 教育都被视为宝石和珠宝行业培训与职业发展的巅峰。我们教授最新的研究成果、技术和经过时间考验的技能，同时我们向学生灌输专业诚信的重要性。作为全球推崇的真正标志，GIA 证书是知识和信任的象征。 

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用显微镜评估视觉识别的高温高压处理钻石，观察刻面交接处强烈的荧光。

探究硬玉和绿辉石的区别，以及美国宝石研究院关于这些宝石定义的现行政策。

人们通常认为石榴石是深红色的宝石，但它也可以是黄色、橙色、绿色或棕色——除了蓝色以外的任何颜色。

Edward Gübelin（爱德华·古柏林）博士收集的藏品中，有许多来自世界各地的罕见宝石。

This document provides the publication information for Gems & Gemology