What is Mica?

Jun. 03, 2020

As a Phlogopite Mica Supplier, share with you.


Mica, a gift of nature


Natural mica has outstanding physical attributes. It can be discovered throughout the globe, most significantly in the existence of Paleozoic rocks. Easily accessible down payments are located mainly in India, on the American continent, in southerly Africa as well as in Russia. The chemical structure of mica places it in the light weight aluminum silicates group. 2 types are removed for common commercial usage: muscovite as well as phlogopite. Muscovite consists of a predominance of aluminum. Its name stems from the large down payments that were manipulated near Moscow during the Middle Ages. Phlogopite is similar structurally, but includes magnesium. Its name is connected with the Greek word for fire. As a sheet silicate (Phyllosilicate), mica has an unique particular-- it can be divided cleft right into really thin Mica Flakes of similar density.

Phlogopite Mica

Phlogopite Mica

Their look is rather different, Muscovite being light tinted, whereas phlogopite is dark.

Muscovite is light colored, whereas phlogopite is dark. Both micas are chemically stable and also are untouched by water, most acids, solvents as well as mineral oils. Mica also has interesting physical attributes; it is practically incompressible, and also offers exceptional tensile toughness and also flexibility. In addition, mica is fireproof as well as withstands temperatures up to 600 ° C, or over 1000 ° C (1830 ° F) in the case of Phlogopite Mica. It is flame-retardant, non-flammable, does not give off fumes, as well as carries out very little warm, especially perpendicular to its strata. In electrotechnical fields, it is specifically appreciated for its exceptional insulation residential properties and also high resistance to warm.

Mica in industrial history

In the initial phases of the electric insulation sector, large blocks of uniform top quality were readily available, which could be used directly after easy splitting. As the supply of quickly available large crystals went out, however, a system had to be created to utilize the smaller sized ones: a continual aluminum foil was gotten by binding mica

splittings to a proper substrate such as paper and cotton with the help of asphalt or shellac. Due to the ever-increasing demand for mica-based insulation materials with greater efficiency, a totally new strategy evolved during the 1940s and 50s to produce a continual sheet of pure mica, including very small platelets that keep their fundamental qualities despite the decrease in size.