| 单词 | thorianite |
| 释义 | thorianite [`thȯr·ē·ǝ´nīt] MINERALOGY ThO2 A radioactive mineral that crystallizes in the isometric system, occurs in worn cubic crystals, is brownish black to reddish brown in color, and has resinous luster; hardness is 7 on the Mohs scale, and specific gravity is 9.7-9.8. |
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