‌Color and gloss‌: Pure natural graphite is usually black-gray and has a metallic luster‌.

‌High temperature resistance‌: The melting point of natural graphite is as high as 3850±50 degree , and the boiling point is 4250 degree . Even under ultra-high temperature arc burning, the weight loss is very small and the thermal expansion coefficient is also very small‌.
‌Electrical and thermal conductivity‌: The electrical conductivity of natural graphite is one hundred times higher than that of general non-metallic minerals, and its thermal conductivity exceeds that of metal materials such as steel, iron, and lead‌.