英语词汇“tranquillityite”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

tranquillityite

释义

tranquillityite Min.|træŋˈkwɪlɪtɪaɪt|
[f. the name of the Sea of Tranquillity on the Moon, where the mineral was first collected: see -ite¹.]
A silicate of ferrous iron, titanium, zirconium, and yttrium, Fe₈(Zr, Y)₂Ti₃Si₃O₂₄, occurring as dark red laths with a hexagonal crystal structure and found only on the moon.
[1970Sci. Jrnl. May 23/3 ‘Tranquilite’ is the name Professors Paul Ramdohr and Josef Zaeringer..have given a new mineral they discovered in Moon rock samples collected by Apollo 11 astronauts.]1971J. F. Lovering et al. in Proc. 2nd Lunar Sci. Conf. (Geochim. & Cosmochim. Acta Suppl. II) I. 39 Tranquillityite.., a completely new silicate mineral, was first recognized in Apollo ii basalt rocks as a possible new phase ‘A’.1981P. H. Cadogan Moon iii. 181 Of all lunar minerals, tranquillityite is perhaps the most important carrier of the naturally radiogenic elements, uranium and thorium.

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友情链接