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Graphite from Regional Metamorphism

What is Graphite?

Graphite is a naturally occurring form of crystalline carbon. It is a native element mineral found in metamorphic and igneous rocks. Graphite is a mineral of extremes. It is extremely soft, cleaves with very light pressure, and has low specific gravity. In contrast, it is extremely heat-resistant and nearly inert in contact with almost any other material. These extreme properties give it various uses in metallurgy and manufacturing. Graphite is a mineral that forms when carbon is subjected to heat and pressure in Earth's crust and the upper mantle. Pressures in the range of 75,000 pounds per square inch and temperatures in the range of 750 degrees Celsius are needed to produce Graphite. These correspond to the granulite metamorphic facies.


Graphite from Regional Metamorphism

Most of the Graphite seen at Earth's surface today was formed at convergent plate boundaries where organic-rich shales and limestones were subjected to the heat and pressure of regional metamorphism. This produces marble, schist, and gneiss containing tiny crystals and Graphite flakes. When Graphite is high enough, these rocks can be mined, crushed to a particle size that liberates the graphite flakes, and processed by specific gravity separation or froth flotation to remove the low-density Graphite. The product produced is known as "flake graphite."


"Amorphous" Graphite

Some graphite forms from the metamorphism of coal seams. The organic material in coal is composed mainly of carbon, oxygen, hydrogen, nitrogen, and sulfur. The heat of metamorphism destroys the organic molecules of coal, volatilizing oxygen, hydrogen, nitrogen, and sulfur. What remains is a nearly pure carbon material that crystallizes into mineral graphite. A small amount of graphite forms by the reaction of carbon compounds in the rock during hydrothermal metamorphism. This carbon can be mobilized and deposited in veins in association with hydrothermal minerals. Because it is precipitated, it has a high degree of crystallinity, making it a preferred material for many electrical uses.


Price of Graphite

Graphite particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Graphite. A large amount of large amount will be lower. The Price of Graphite is on our company's official website.


Graphite supplier

Mis-Asia is a reliable and high-quality global chemical material supplier and manufacturer. It has over 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Graphite, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Graphite, you are welcome to contact us or inquire any time.

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