褐铁矿

Under supergene process influencing, kaolinites invered dickites, siderite were been ferritization, part of carbonate mineral have been dissoluted producing calcite.

在表生作用的影响下，高岭向地开转，菱铁褐铁，分碳酸盐物溶解生成方解。

An oxidized zinc ore from Inner Mongolia was found to be very difficult to treat due to its features of high oxidation rate,heavy weathering and the intimate association of hemimorphite and limonite.

内蒙某氧锌氧率高,风严重,异极和褐铁共生关系紧杂,是一个难选的氧锌。