The contents of organic material, limonite and manganese hydroxides influence the variation of ore element.有机物 、 褐铁矿和氧化锰的含量影响着成矿元素含量的变异.The mineral components of nodules are mainly pyrolusite, psilomelane and limonite.锰结...

n.褐铁矿...

limonite的音标：limonite的英式发音音标为：['laɪmənaɪt]limonite的美式发音音标为：['laɪməˌnaɪt]...