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Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 (SiO 3) 6) colored green by trace amounts of chromium or sometimes vanadium. [2] Beryl has a hardness of 7.5–8 on the Mohs …
(also emerald green) a bright green colour 翠绿色 (emerald在剑桥英语-中文（简体）词典的翻译 © Cambridge University Press)
Emerald is the green variety of the mineral beryl and birthstone for the month of May. It has been the world's most popular green gemstone for over 5000 years.
现在是全球化的时代，外国人对宝石的研究也要领先于我们，在很多报道和翻译器中，“emerald”经常被译作翡翠，其实它是指宝石中的 祖母绿 而不是指翡翠。
Emerald is the green to bluish green variety of beryl, a mineral species that also includes aquamarine as well as beryls in other colors. Gem experts differ on the degree of green that …
祖母綠 (emerald)，屬於寶石級 綠柱石，傳統上為 樞要寶石 之一，用於製作 宗教儀式 用品和皇室珠寶。 在 礦物學 尼克爾-斯特倫茨分類 中屬於 矽酸鹽礦物。
Gem experts differ on the degree of green that makes one stone an emerald and another stone a less-expensive green beryl, but most experts and dealers call a stone green beryl when its color …
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近15年来，Emerald中国始终以务实的态度支持中国学术界不断发展的研究需求，竭诚为客户提供周到的服务。 我们将持续努力通过学术出版传播具现实社会影响力的研究。
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