Clear blue quartz. Obsolete.
单词 | θ215624 |
释义 | society > occupation and work > materials > raw material > gem or precious stone > rock crystal > [noun] > sapphire-quartz (3) water sapphire1788 Clear blue quartz. Obsolete. siderite1808 Mineralogy. A blue variety of quartz. sapphire quartz1868 a rare indigo-blue variety of quartz; = siderite, n.1 4. |
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