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摘要;1991 年夏

摘自《宝石与宝石学》1991 年夏季刊,是对其他期刊上发表的重要宝石学相关文章的摘要汇编。

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Color zoning in amethyst from Boudi, Morocco
Amethyst from Boudi, Morocco

An introduction to Moroccan amethyst, which features distinctive color zoning and inclusions.

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