Used as a pigment in ceramics and glass for producing pink to red hues. Acts as a catalyst in certain chemical reactions, especially in organic synthesis. Employed in the production of dry cell batteries due to its electrochemical properties. Serves as a precursor in the synthesis of other manganese compounds. Also used as a material in the semiconductor industry due to its optical, electronic, and magnetic properties, including applications in solar cells, special light-emitting diodes (LEDs), nanomagnetic devices, and magnetic memory research.