The types of natural graphite can be classified according to their crystal form and characteristics, mainly including the following:
Loose graphite: also known as light-colored graphite, mostly gray-black, gray-white or light gray, with extremely low density and high porosity, usually used to prepare high-end pencil leads, electric graphite, electrodes, graphene, etc.
Crystalline graphite: It is a typical graphite crystal with an orderly crystal structure and high purity. It is generally used to prepare high-temperature materials, electrodes and various conductive materials.
Powdered graphite: It has small particle size and large surface area. It is often used in coatings, inks, glues, electrodes, etc. in industrial production.
Granite-type graphite: It has a bead-like or top-like shape and is often used to make high-end products such as cosmetics and skin care products.
Connective tissue graphite: It has a dense, gray-black structure and is mainly used in high-end pencil leads, friction materials, electrical carbon materials, etc.
Graphite in the main graphite mineralization belt: The geological distribution range is wide, the carbon content is generally low, and it has certain industrial uses.
Mantle graphite: Natural graphite deep underground, with high crystal purity, can be used to prepare advanced graphite products, melt electrolytes and semiconductor materials, etc.
In addition, according to the different crystal forms, natural graphite can also be divided into the following types: Compact crystalline graphite (blocky graphite): The crystal state is the best, but the plasticity and lubricity are poor.
Aphanitic graphite (earthy graphite): The particle size is extremely fine, the impurity content is high, the crystal state is the worst, and the utilization is more complicated.
Flake graphite: The floatability is the best, and high-grade graphite concentrate can be obtained after multiple grinding and selection, which has the greatest industrial application value