a colourless variety of corundum lacking the impurities responsible for the blue colour of ordinary sapphire.
单词 | θ215570 |
释义 | society > occupation and work > materials > raw material > gem or precious stone > corundum gemstones > [noun] > sapphire > types of (3) white sapphire1558 a colourless variety of corundum lacking the impurities responsible for the blue colour of ordinary sapphire. salamstone1816 A blue variety of sapphire from Sri Lanka (Ceylon). water sapphire1888 A colourless variety of natural sapphire (sense 1b) or topaz. rare. |
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