Place of Origin : Tian Jin,China

It is cubic crystal system or amorphous powder, olive green, which has metallic luster. its gravity is 5.21, melting point is 2,266±25oC and boiling point is 4,000oC. It can not dissolve in water and acidic solution, but it can dissolve in the solution of alkali metallic bromate. It is very stable to light, atmosphere, high temperature and corrosive gas (SO2, H2S etc.) It has high covering power and magnetism.