单词 | ruby spinel |
例句 | Similarly, ruby can at once be distinguished from even the finest garnet or ruby spinel, as the last two are singly refracting. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public The "rubies" of the poet's time were frequently ruby spinels, or the so-called "balas rubies" from Badakshan, in Afghan Turkestan. Shakespeare and Precious Stones Treating of the Known References of Precious Stones in Shakespeare's Works, with Comments as to the Origin of His Material, the Knowledge of the Poet Concerning Precious Stones, and References as to Where the Precious Stones of His Time Came from The peculiar yellowish character of the red color led us to suspect ruby spinel. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public |
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