Graphite particle size: The particle size of graphite directly affects its quality. Smaller particles have a larger specific surface area, provide more active surfaces, and therefore have better electrical conductivity and chemical reactivity.

Impurity content: Impurity refers to other elements or compounds doped in the graphite crystal. High quality natural crystalline flake graphite should contain as few impurities as possible, because the presence of impurities can affect its physical and chemical properties.

Interlayer distance of graphite: Graphite is made up of layers of graphite sheets, and the interlayer distance between graphite sheets affects its physical properties, such as electrical conductivity and strength. Smaller interlayer distances are generally associated with higher mass.

Direction of crystallization: The direction of crystallization of graphite can affect its physical properties. The graphite crystals have different physical properties along specific directions, such as longitudinal or transverse. High quality crystalline flake graphite usually has good crystalline orientation.

These parameters not only affect the quality of natural crystalline flake graphite, but also the quality and processing technology of natural graphite ore.