本文首先介绍了自然界中存在的氧化锰矿物类型，以及大洋铁锰结核和富钴结壳中的主要锰矿物相水钠锰矿和水羟锰矿的结构、构造特点。
This paper , firstly , introduces the types of manganese in the nature and the characteristics of the structure and formation of vernadite and birnessite in the ferromanganese nodules and cobalt-rich crusts .
钠水锰矿