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单词 tincalconite
释义 tincalconite Min.|tɪnˈkælkənaɪt|
[f. tincal + Gr. κον-ία powder + -ite1.]
A hydrated basic borate of sodium, Na2B4O5(OH)4.3H2O, occurring as a fine white powder with rhombohedral symmetry and formed by the dehydration of borax.
[1878C. U. Shepard in Bull. Soc. Franç. de Minéral. I. 144 Tincalconite (Shepard). Borax pulvérulent et efflorescent, de Californie.]1892E. S. Dana Dana's Syst. Min. (ed. 6) 887 Tincalconite.1930Prof. Papers U.S. Geol. Survey No. 158. 164/2 Tincalconite can readily be made by boiling a solution of borax until crystallization ensues.1977Mineral. Abstr. XXVIII. 280/2 Tincalconite and meyerhofferite are thought to be metastable, and unsuccessful attempts to bring about their dehydration to kernite and colemanite are reported.
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