Manganese ore types

 Pyrolusite

• Composition: Pyrolusite (MnO2) is the most significant manganese ore, containing about 63% to 67% manganese.
• Characteristics: It is typically black, has a metallic luster, and exhibits a high density. Pyrolusite is often found in sedimentary deposits and can be associated with iron and other minerals.
• Uses: Pyrolusite is primarily used in steel production and as a pigment in glass and ceramics.

Manganite

• Composition: Manganite (MnO(OH)) contains about 63% manganese.
• Characteristics: This mineral appears dark brown to black and has a high specific gravity. Manganite is often found in metamorphic rocks and can also occur in sedimentary environments.
• Uses: Manganite is used in steelmaking and as a raw material for producing manganese compounds.

 Psilomelane

• Composition: Psilomelane is a complex manganese oxide with varying chemical composition, typically represented as (Ba, K)(Mn2+ , Mn4+ )8O16·3H2O.
• Characteristics: It is usually black to brown and has a layered structure. Psilomelane is primarily found in hydrothermal deposits and can form in sedimentary environments.
• Uses: Psilomelane is used in steel production and in the manufacture of batteries.

 Rhodochrosite

• Composition: Rhodochrosite (MnCO3) is a manganese carbonate that contains about 48% manganese.
• Characteristics: It is known for its pink to red coloration and is commonly found in hydrothermal veins.
• Uses: Rhodochrosite is less commonly used in industry compared to other manganese ores but can be used as a flux in steelmaking and in the production of manganese compounds.