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单词 powellite
释义 powellite2 Min.|ˈpaʊəlaɪt|
[Named 1891, after Major J. W. Powell: see -ite1.]
Molybdate and tungstate of calcium, of yellow colour and resinous lustre.
1897Amer. Jrnl. Sc. Ser. iii. XLI. 138 Powellite—calcium molybdate; a new mineral species.
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