| 单词 | gadolinite | 
| 释义 | gadolinite [`gad·ǝl·ǝ´nīt]  MINERALOGY Be2FeY2Si2O10 A black, greenish- black, or brown rare-earth mineral; hardness is 6.5-7 on Mohs scale, and specific gravity is 4-4.5.  | 
	
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