dioptase
/daɪˈɒpteɪs/noun
mass noun
- a rare mineral occurring as emerald green or blue-green crystals. It consists of a hydrated silicate of copper.透视石, 绿铜矿。
词源
early 19th cent.: from French, formed irregularly from Greek dioptos 'transparent'.
| 单词 | dioptase |
| 释义 | dioptase/daɪˈɒpteɪs/noun mass noun
词源 early 19th cent.: from French, formed irregularly from Greek dioptos 'transparent'. |
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