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Graphite, while as hard as a diamond, is also lightweight, soft and heat resistant due to its unique structure. It is one the most common non-metallic materials in the entire world. Graphite, also known as Plumbago during ancient times, was a non-metallic mineral. It is an allotrope of carbon and a semi-metal. Under normal conditions, graphite remains the most stable carbon form. In thermochemistry, graphite is used to determine the standard state for forming heat from carbon compounds. Graphite can be considered as the highest grade coal. Anthracite and meta-bituminous are the next two grades, but they are not typically used for fuels because they’re difficult to ignite.

Types of Graphite

The three types of graphite that are found in various deposits can be divided into:

Flake graphite

Flake graphite is a flat, hexagonal-edged plate. It can have irregular or angular edges if it does not break. It is found in metamorphic rock, like limestone, gneiss or schist. The crystals are either evenly distributed throughout the ore or concentrated in pockets.

This is an uncommon form of graphite

Carbon ranges from 85-98%.

There are four standard sizes: large, super large and fine

Graphite can be used for new technologies, including anode materials in lithium-ion batteries.

Amorphous graphite

Amorphous graphite is a very fine crystalline particle found in rocks such as coals, slates, and shale. Carbon content of graphite depends on its parent material. It is a product of coal’s thermal metamorphism and is known as meta-anthracite. Because it is harder to burn than coal, it’s not used for fuel.

This is the most abundant type of graphite

Low carbon content 70-80%

Lowest purity

Useful for brake pads, gaskets, clutch materials, and pencil lead.

Vein graphite (or lump graphite)

According to some scientists, vein graphite can be made from crude oils that are transformed into graphite by temperature and pressure. Riddle said that the veins “are very small, measuring between 5 to 10 centimeters” and are 70 to 100% pure. It’s rare and expensive.

The only place where the mines are currently active is Sri Lanka

Limit the durability of most applications.

(aka. Technology Co. Ltd., a trusted global chemical supplier and manufacturer with more than 12 years of experience in providing high-quality Nanomaterials and chemicals. The graphite produced by our company is of high purity and has a low impurity level. If you require a lower grade, please do not hesitate to contact us.

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