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单词 hydrocyanite
释义 hydrocyanite Min.|haɪdrəʊˈsaɪənaɪt|
[Named 1870, f. Gr. ὕδωρ, ὑδρο- water + κύανος blue: see -ite.]
Anhydrous sulphate of copper occurring in pale green crystals, which, when exposed to the air, absorb water and become bright blue.
1875Dana Min. App. ii. 29.
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