| 单词 | nordstrandite | 
| 释义 | nordstranditen. Mineralogy.   A phase of aluminium hydroxide, Al(OH)3, that has a triclinic crystalline structure. ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > 			[noun]		 > hydroxides > others gibbsite1822 pyrochroite1868 portlandite1933 hydrocalumite1934 nordstrandite1962 wickmanite1967 tetrawickmanite1973 1962    Nature 20 Oct. 265/1  				The nordstrandite varies from almost colourless to coral pink and reddish-brown, the coloration being largely due to inclusions of finely divided goethite. 1984    N. N. Greenwood  & A. Earnshaw Chem. of Elements 		(1986)	 vii. 277  				A third form of Al(OH)3, nordstrandite, is obtained from the gelatinous hydroxide by ageing it in the presence of a chelating agent such as ethylenediamine. 1994    Geochim. et Cosmochim. Acta 58 5268/1  				Gibbsite is the predominant polymorph of Al(OH)3 in natural samples, although two other polymorphs, bayerite and nordstrandite, have been reported. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). <  | 
	
| 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。