单词 | smithsonite |
释义 | smithsoniten. Mineralogy. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > sorosilicates > [noun] > hemimorphite calaminaris1577 calamine1601 calmy1658 lapis calaminaris1696 ostracitis1706 cadmia1753 cadmy1756 calamy1756 calmey1756 calamine stone1761 smithsonite1845 hemimorphite1868 1845 Encycl. Metrop. VI. 520/1 Smithsonite. Electric Calamine. 1878 H. P. Gurney Crystallogr. 55 Smithsonite..is zinc silicate crystallised with one equivalent of water. ?1906 Victorian Year-bk. 1905 525 Smithsonite (silicate) and calamine (carbonate) occur rarely in small crystals, as decomposition products of the blende. 2. A mineral consisting of zinc carbonate, typically occurring as colourless prisms and crystalline aggregates.Formula: ZnCO3. Crystal system: trigonal. ΘΚΠ the world > the earth > minerals > ore > [noun] > metal ore > zinc ore calaminaris1577 calamine1601 calmy1658 calaminarya1661 mock ore1681 blende1683 lapis calaminaris1696 mock-leada1728 black jack1728 cadmia1753 cadmy1756 calamy1756 calmey1756 calamine stone1761 red zinc ore1781 zinc spar1796 zinc-blende1842 smithsonite1849 zincite1854 adamite1866 adamine1869 the world > the earth > minerals > types of mineral > carbonates > [noun] > hexagonal > smithsonite calaminaris1577 calamine1601 calmy1658 lapis calaminaris1696 ostracitis1706 cadmia1753 cadmy1756 calamy1756 calmey1756 calamine stone1761 zinc spar1796 smithsonite1849 1849 D. Varley Rudimentary Treat. Mineral. 90 Carbonate of Zinc (Calamine, Smithsonite), Is abundant in many of the localities of lead ores. 1854 J. D. Dana Syst. Mineral. (ed. 4) I. 448 In the United States, smithsonite is found occasionally at the lead mines of Missouri, and Wisconsin, though the ore is mostly silicate of zinc. 1927 Mineral. Mag. 21 387 Smithsonite (ZnCO3) is also tolerably abundant..and it is in cavities of this smithsonite that the serpierite occurs. 2007 Financial Times 24 Nov. (How to Spend it section) 67/2 The company claims that smithsonite, a zinc carbonate, has a protective, anti-free radical benefit. This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022). < n.1845 |
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