单词 | hydrocalumite |
释义 | > as lemmashydrocalumite hydrocalumite n. Brit. /ˌhʌɪdrə(ʊ)ˈkal(j)ᵿmʌɪt/ , U.S. /ˌhaɪdroʊˈkæl(j)əˌmaɪt/ [ < blend of cal- (in calcium n.) + alum- (in aluminate n.)] Mineralogy a transparent, colourless to light green hydrated hydroxide of calcium and aluminium, Ca2Al(OH)7.3H2O.ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > hydroxides > others gibbsite1822 pyrochroite1868 portlandite1933 hydrocalumite1934 nordstrandite1962 wickmanite1967 tetrawickmanite1973 1934 C. E. Tilley in Mineral. Mag. 23 607 In allusion to its composition as an hydrated calcium aluminate (4CaO.Al2O3.12H2O) the name hydrocalumite is proposed. 1968 I. Kostov Mineral. 215 Apart from hydrocalumite, which is rather soft.., the other minerals are hard. < as lemmas |
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