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单词 polydymite
释义 polydymite Min.|pəˈlɪdɪmaɪt|
[Contr. for *polydidymite; named by Laspeyres, 1876, f. Gr. πολυ-, poly- + δίδυµος twin.]
Sulphide of nickel, of a light grey colour, with metallic lustre, occurring in polysynthetic twin crystals.
1878Min. Mag. II. 98 Polydymite..occurs in macled octahedrons.1892Dana Min. (ed. 6) 75 A nickel ore from Sudbury..corresponds to..the general formula of polydymite.
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