Research Article Search Results

Irradiated Green-Blue CVD Synthetic Diamonds (英语)

Advancing CVD growth technologies yield intensely colored, high-quality synthetic diamonds, such as the two green-blue synthetic materials seen in the New York lab.

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Pezzottaite Debuts as the Newest Trapiche Gem Mineral (英语)

A rare mineral acquired along the Thai-Myanmar border exhibits the distinctive six-spoke pattern associated with trapiche.

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Colombian Trapiche Emeralds: Recent Advances in Understanding Their Formation (英语)

Proposes a model for trapiche emerald formation based on petrographic, spectroscopic, and chemical examination.

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Large Colorless HPHT-Grown Synthetic Gem Diamonds from New Diamond Technology, Russia (英语)

Examines a new source of colorless and near-colorless gem-quality HPHT synthetic diamonds using spectroscopic and gemological analysis.

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在 GIA 鉴定所鉴别出的近无色的米粒尺寸高压高温 (HPHT) 合成钻石 (英语)

The Bangkok lab examines near-colorless HPHT synthetic diamonds in melee sizes.

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LPHT 热锻的粉红色 CVD 合成钻石 (英语)

The New York lab examines three pink CVD synthetic diamonds which have received LPHT annealing treatment.

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Rock Creek(岩溪)蓝宝石矿床的更新消息 (英语)

An overview of recently expanded sapphire production at the Gem Mountain mine near Philipsburg, Montana.

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Blue Spinel from the Luc Yen District of Vietnam (英语)

Offers geological context and gemological characterization of this increasingly popular vivid blue spinel from northeast Vietnam.

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Mozambique: A Ruby Discovery for the 21st Century (英语)

Explores the geology, production, and yield of the world’s most commercially important ruby deposit.

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Tsavorite Garnet and Mahenge Red Spinel (英语)

A discussion of the current demand for tsavorite and spinel in today’s market.

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Gem Artistry in Smaller Sizes (英语)

Unique carvings in gems are displayed at GJX in Tucson.

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HPHT Synthetic Diamond Melee in High-Quality Jewelry Piece (英语)

The New York lab discovers a synthetic melee diamond in a pendant, underscoring the importance of testing for undisclosed synthetics.

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