单词 | ningyoite |
释义 | ningyoiten. Mineralogy. A translucent brown or brownish-green mineral which consists of a hydrated phosphate of calcium and uranium (usually with some cerium or other rare-earth elements), and belongs to the orthorhombic system. ΘΚΠ the world > the earth > minerals > types of mineral > phosphates > [noun] > uranium phosphates uranite1793 autunite1852 torbernite1852 phosphuranylite1879 parsonsite1923 renardite1929 saléeite1934 sabugalite1951 ningyoite1959 1959 T. Muto et al. in Amer. Mineralogist 44 634 The new mineral, ningyoite, is named for the locality, Ningyo Pass. 1962 Mineral. Jrnl. 3 306 Ningyoite contains almost all the rare earths and their abundance ratio resembles that of apatite. 1970 Econ. Geol. 65 470 For the formation of ningyoite, fixation of much sulfur in comparison with carbonaceous matter should occur before the penetration of uranium-carrying solutions. 1994 Jrnl. Czech Geol. Soc. 39 267 Electron microanalyses indicate the existence of a continuous isomorphic series between ningyoite and brockite which is manifested by the unlimited mutual substitution of U and Th. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022). < n.1959 |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。