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前言钛铀矿是人们早已熟悉的一种铀钛氧化物。对它的研究可大致分成三个阶段:自1920年被赫斯和威尔斯(F.S.Hess,R.G.Wells)发现至1959年的第一个阶段,许多人对钛铀矿的化学成分、物理性质、X射线粉晶分析、产状等方面作了些工作。由于系变生矿物,又没有遇到较完整的自形晶体,无法进行单晶结构分析和结晶学方面的研究,晶系一直未确定。到1960年的第二个阶段,佩契特等用人工合成方法获得了钛铀矿的单晶,并进行了单晶X射线分析,确定为单斜晶系。1961年以后的第三个阶段,对天然钛
Preface Titanium uranium is a familiar uranium titanium oxide. Its research can be broadly divided into three stages: from the discovery by FSHess (RGWells) in 1920 to the first stage in 1959, many people have studied the chemical composition, physical properties of titanium uranium deposits , X-ray powder analysis, production and so on made some work. Because of the Department of metamorphic minerals, but also did not encounter a more complete self crystal, single crystal structure analysis and crystallography can not be studied, crystal system has not been determined. By the second stage of 1960, Percite et al. Obtained the single crystal of titanium uranium ore by artificial synthesis and conducted single crystal X-ray analysis to determine the monoclinic system. The third stage after 1961, on natural titanium