【摘要】 本文对我国不同地区和不同成因类型矿床及人工合成的金红石的20个样品进行了矿物学研究。结果表明,大多数金红石样品中都含有钛铁矿的嵌晶,金红石和嵌晶钛铁矿晶粒中多含有含钛赤铁矿（Titano-hematite）的出溶相。金红石晶粒中的含钛赤铁矿于600℃消失;而钛铁矿中的含钛赤铁矿于800℃消失,且整个晶粉转变成亚铁假板钛矿（Ferro-pseudobrookite）。总结出金红石中铁的三种存在形式:类质同象置换钛的Fe³⁺、固溶体出溶相含钛赤钛铁矿中的Fe³⁺及钛铁矿中所含的Fe²⁺。更多还原

【Abstract】 The mineralogy of more than 20 samples of natural and synthetic rutile （grains?） has been investigated. Rutile samples were collected from various genetic types of ore deposits in different localities of China. The results indicate that in most of the rutile grains are contained some ilmenite mosaic crystals, and in both rutile and mosaic ilmenite occurs the exsolution phase——titano-hematite.Annealing experiments show that the titano-hematite in rutile grains disappears at 600℃, but exsolved titano-hematite in mosaic ilmenite disappears at 800℃ and the whole grain is converted to ferro-pseudobroohite.It is found that the iron in rutile exists in three forms:Fe³⁺, which is isomorphously substituted for Ti⁴⁺ Fe³⁺, which occurs in the exsolved mineral——titano-hematite and Fe²⁺, which exists in mosaic ilmenite crystals.更多还原