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用X射线衍射和化学选择溶提技术研究我国几种土壤中铁锰结核的锰矿物类型的结果表明：供试土壤铁锰结核都含有锂硬锰矿，除山东钙积潮湿变性土以钙锰矿占优势外，其它样品中的锰矿物均以锂硬锰矿为主，结晶程度较高；湖北武汉和枣阳的粘磐湿润淋溶土的铁锰结核含有钠水锰矿和羟水锰矿；湖南宜章富铝湿润富铁土、湖北粘磐湿润淋溶土和山东钙积潮湿变性土的铁锰结核中有钡硬锰矿；湖南桂阳富铝湿润富铁土的铁锰结核中检测出少量的铅锰矿。土壤铁锰结核中锰矿物类型与相应土壤条件下的土壤母质、PH值、阳离子类型与数量等土壤条件相一致。
The results of X-ray diffraction and chemical selective stripping technology on the types of manganese minerals in Fe-Mn nodules in several soils in China show that the Fe-Mn nodules in the soil samples contain lithium-lithium-manganese ore, and the calcareous manganese dominates In addition, the manganese minerals in other samples are dominated by lithium-manganese ore and have a high degree of crystallization. The Fe-Mn nodules in the clay-wetting leaching soil of Wuhan and Zaoyang in Hubei Province contain sodium-manganite ore and hydroxy-manganite ore. There are barium hard manganese ore in iron-manganese nodules of aluminum wet-rich iron-rich soil, sticky-stick wet soil in Hubei Province and humid soil of calcareous soil in Shandong Province. A small amount of lead-manganese ore is detected in the iron-manganese nodules of wet-rich iron- . Manganese mineral types in soil Fe-Mn nodules are consistent with soil conditions such as soil parent material, PH value, type and amount of cations under corresponding soil conditions.