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单词 pycnite
释义 pycnite Min.|ˈpɪknaɪt|
[mod. (Haüy 1801) f. Gr. πυκν-ός thick, dense + -ite1.]
A variety of topaz occurring in columnar aggregations.
1802Bournon in Phil. Trans. XCII. 321 The stone called schorlartiger beryl by Werner (the pycnite of the Abbé Hauy).1866Lawrence tr. Cotta's Rocks Class. (1878) 31 Pycnite is a fibrous variety of topaz.
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