单词 | natrochalcite |
释义 | > as lemmasnatrochalcite natrochalcite n. Brit. /ˌneɪtrə(ʊ)ˈkalsʌɪt/ , /ˌnatrə(ʊ)ˈkalsʌɪt/ , U.S. /ˌneɪtroʊˈkælˌsaɪt/ , /ˌnætroʊˈkælˌsaɪt/ [ < natro- comb. form + classical Latin chalcītis copper pyrites (see chalcites n.)] a monoclinic basic hydrated sulphate of sodium and copper, NaCu2(SO4)2(OH)·H2O, found as emerald-green crystals in Chile.ΘΚΠ the world > the earth > minerals > types of mineral > sulphates > [noun] > sulphates of two elements > hydrous or hydrated > basic sideronatrite1882 natrochalcite1908 1908 C. Palache & C. H. Warren in Amer. Jrnl. Sci. 176 343 The collection..was obtained from exhausted copper veins and includes..natrochalcite (a new mineral). 1944 Econ. Geol. 39 274 The SO3 concentration is so reduced that chalcanthite, natrochalcite, and krohnkite become unstable and antlerite takes their place. 1987 Zeitschr. f. Kristallogr. 179 431 The crystal structure of the monoclinic mineral natrochalcite, NaCu2(OH)(SO4)2·H2O, was determined by Rumanova and Voldina. < as lemmas |
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