Research Article Search Results
ベトナムのルビーとファンシーサファイア (英語)
Gem-quality rubies and pink to purple sapphires are being recovered from the Luc Yen and Quy Chau mining regions of Vietnam.
伝説的なドレスデン・グリーンダイヤモンド (英語)
In addition to its rich history, the Dresden Green offers an opportunity to gain information about how to distinguish natural from laboratory-irradiated green diamonds.
The Sinkankas図書館（シンカンカスライブラリ） (英語)
The world-renowned Sinkankas collection of books and other publications is now available to the public as part of the Richard T. Liddicoat Gemological Library and Information Center at GIA Santa Monica.
コスクエス鉱山：コロンビア産エメラルドの主要原産地 (英語)
The Coscuez mine, one of a number in Colombia, is rapidly gaining significance as a major source of fine emeralds.
ビルマのルビー：モゴック鉱区についてのレビュー (英語)
A review of the history of this area, its geology, and the mining methods that have predominated.
The Oil Treatment of Emeralds in Bogotá, Colombia
This article focuses on Colombian emeralds and gives a detailed explanation of the oiling process as observed by the author.
ブラジル、ミナスジェライス州オーロプレトのカパオ トパーズ鉱床 (英語)
This article examines the history of the Ouro Preto district as well as the geology of the area and occurrence of the topaz.
タイのChanthaburi-Trat（チャンタブリ‐トラット）宝石鉱山 (英語)
Thailand has become the world's major source of gem ruby.
サンカルロス・ペリドット (英語)
Marketed throughout the world, San Carlos material is often confused with, and sold as, peridot from localities that are better known and documented.
コロンビアのエメラルド (英語)
A comprehensive review of the history and geology of Colombian emeralds together with descriptions of some of the most famous gems to come from this locality.
Sapphire Rush Near Ambatondrazaka, Madagascar (英語)
A newly found deposit of sapphire in Madagascar is explored.
ダイヤモンド中の珍しいダンベルのようなインクルージョン (英語)
Examination of a 0.40 ct near-colorless round brilliant diamond with a large inclusion resembling a dumbbell
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