“simpsonite”的英文意思_释义_用法

单词

simpsonite

释义

simpsonite Min.|ˈsɪmpsənaɪt|
[f. the name of E. S. Simpson (1875–1939), Australian mineralogist + -ite¹.]
An oxide essentially of aluminium and tantalum, approximately Al₄Ta₃O₁₃(F,OH), found as colourless hexagonal crystals externally altered to a dull cream.
1939H. Bowley in Jrnl. R. Soc. W. Australia XXV. 89 This was sufficient to indicate that it was a mineral not previously recorded so it was decided to give it the name Simpsonite in honour of Dr. E. S. Simpson.., who..has made many outstanding contributions to our knowledge of Western Australian minerals, particularly..tantalum⁓bearing minerals.1959Mineral. Abstr. XIV. 274/1 Simpsonite is found in a pegmatite vein near Leshai in the northern part of Kola peninsula.1964Doklady Acad. Sci. U.S.S.R.: Earth Sci. Sect. CXLVII. 147 The crystal structure of simpsonite is close-packed and has seven octahedra as its repeat distance.

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