“sinhalite”的英文意思_释义_用法

单词

sinhalite

释义

sinhalite Min.|ˈsɪnhəlaɪt|
[f. as Sinhalese n. and a. + -ite¹.]
A borate of aluminium and magnesium, MgAlBO₄ (usu. also containing iron), which forms pale yellow to deep brown orthorhombic crystals resembling olivine and frequently of gem quality.
1952Claringbull & Hey in Mineral. Mag. XXIX. 843 For this new mineral the name sinhalite is proposed, from Sinhala the Sanskrit name for Ceylon.1952Times 4 Dec. 3/3 Sinhalite..was previously thought to be an olivine rich in iron.1965Amer. Mineralogist L. 1979 The sinhalite from Ceylon had a density of 3·494, corresponding to a composition (Al,Mg)_1·95Fe_0·05BO₄. Judging from the absorption data, most of the iron in sinhalite is divalent.1971Jrnl. Gemmology XII. 154 One of the few sinhalites we have officially tested..was an attractive golden brown specimen.

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