2015年GSA(米国地質学会)年次総会
Tao Hsu, James E. Shigley, and Dona Dirlam, 2月 1, 2016
ボルチモアで行われたGeological Society of America(米国地質学会)の年次総会の概要。
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Chrysocolla In Quartz
Donna Beaton and Akhil Sehgal, 4月 30, 2015
A gemological examination of chrysocolla in quartz from Tucson’s AGTA show.
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Oregon Sunstone Update
Duncan Pay, 4月 30, 2015
An review of the Oregon sunstone seen at the Tucson gem shows.
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Chinese Freshwater Pearl Culturing, Overall Market Summary
Duncan Pay, 4月 30, 2015
A review of Chinese freshwater cultured pearl production, with an update on the market for Tahitian, South Sea, and akoya cultured pearls.
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Tsavorite Garnet and Mahenge Red Spinel
Duncan Pay, 4月 30, 2015
A discussion of the current demand for tsavorite and spinel in today’s market.
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Ginger Garnet, “Fancy” Tanzanite
Duncan Pay, 4月 30, 2015
Garnets and a wide variety of tanzanite at the Tucson gem shows.
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High-End Colored Gems
Duncan Pay, 4月 30, 2015
A unique assortment of colored gemstones as seen at the GJX show in Tucson.
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Exceptional Red Spinels and Fine Aquamarine
Duncan Pay, 4月 30, 2015
Beautifully cut spinel and aquamarine was among the finds at Tucson’s GJX show.
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サンストーン、ルチルクォーツ、ベリルにおけるひときわ優れた宝石の芸術 - ツーソン2014
Duncan Pay, 4月 30, 2014
アリゾナ州のツーソンで行われたGems and Jewerly Exchange (宝石と宝飾品展示会) ショーで見られた、見事なカット技法やデザイン例。
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Gemstones and Jewelry Inspired By Nature
Donna Beaton, 4月 30, 2015
At AGTA, exquisite jewelry pieces inspired by natural scenes were on view.
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