Electronmicroscopic examination shows that Ti-oxide (rutile or anatase) is replaced by brannerite, indicat-ing the metasomatic origin of brannerite.

在电镜下观察到铀与的氧化（金红石或锐）交代关系，说明铀是交代因的。

The alabandite and getchellite of hydrothermal origin, cement anatase of alkaline volcanic origin, and the high content of chlorite in coal were fist found in coals.

在西南区晚二叠世煤中首次发现了热液因的硫硫砷锑、碱性火山灰因的胶态锐陆源碎屑因的斜绿泥石。

There is siderite, iron dolomite , calcite, Barite, pyrite, anatase, rutile, piece quartz, the mica ( or hydromica ), diaspore,etc. in the impurity in the mineral .

杂质物见有菱铁，铁白云石，方解石，重晶石、黄铁，锐，金红石，碎屑石英，云母（或水云母），水铝石等。