Manganese ore for industrial use for the majority of compounds of manganese oxides and carbonates. The most important manganese minerals are: pyrolusite (MnO 2 ), hard manganese ore (mMnO·MnO 2 · nH 2 O), meta-manganese ore (MnO 2 · nH 2 O), manganese (nMn 2 O 3 · MnO) 2 , nH 2 O), manganese ore (Mn 2 O 3 · H 2 O ), manganite (Mn 2 O 3 ), manganite (Mn 3 O 4 ), rhodochrosite (MnCO 3 ), manganese calcite (Ca , Mn) CO 3), manganese iron mineral chabazite ((Mn, Fe) CO 3 ), calcium rhodochrosite ((Mn, Ca) CO 3 ) and the like. Pyrolusite is commonly found in the oxidized zone on the bed of manganese ore. It is a ruthenium-like aggregate. The structure is soft and brittle, and there are few crystalline forms. In the cryptocrystalline block, a mixture of Fe 2 O 3 and SiO 2 is often mixed. Manganese ore and manganese are complex manganese hydroxides, which are formed by cryptic crystals and colloids. They are often combined with iron oxide and often contain colloidal compounds such as nickel oxide, cobalt , lead , zinc and copper . Rhodochrosite and manganese silicate are often in the deep part of the deposit. Most manganese ore is composed of a variety of manganese minerals and contains a certain amount of iron. Common gangue minerals are quartz, calcite, clay, sericite and chlorite. Air Humidifier,Cool Mist Humidifier,Humidifier For Bedroom,Room Humidifier Ningbo Glory King Imp&Exp Co., Ltd. , https://www.nbglory.com