Chain structure silicate mineral. Mg, Fe, and Zn often replace Mn and Ca. Tricline system, space group C-PU granular or compact block. Rose red or brownish red. Black manganese hydroxide is often formed by oxidation to cover the surface of minerals. glass luster, pearly luster on cleavage surface. It occurs in low-temperature hydrothermal veins and also in metamorphic deposits formed by regional metamorphism of sedimentary manganese ore. Fresh and bright color can be used as carving materials. In gems and jades, it is the main mineral phase of Beijing jade.
Natural materials and products -> Mineral materials