Muscovite Mica, also called ordinary mica, potassium mica or mica, is one of the mica minerals. Muscovite is a good electrical and thermal insulator, and it can be produced in large quantities, so it has important economic value. Generally it is produced in metamorphic rocks, but it is also produced in rocks such as granite. Muscovite is not just white, it can be lighter brown, green, red to colorless, with glass luster to silk luster. The shape is a large plate, hexagonal crystal or a collection of fine grains.
Muscovite is one of the broadly divided rock-forming minerals and is produced in three major rock types. The argillaceous rock can form sericite in the process of low-level regional metamorphism, and when the degree of metamorphism is higher, it becomes muscovite. A large amount of muscovite was formed in the late acidic magma crystallization stage and the pegmatization stage. It can also be formed during the alteration process from high temperature to medium and low temperature. The so-called fritization is one of the high-temperature alterations that can form a large amount of muscovite. The so-called sericitization is one of the medium and low temperature alterations, which can form a large amount of Sericite Mica. Muscovite is weathered and broken into very fine scales, which can be either the clastics in the clastic sediments or one of the mineral components of argillaceous rocks.
Muscovite orthorhombic prism crystals, usually in the form of plates or flakes, forming a pseudo-hexagonal or rhombus outside. The cylinder has obvious horizontal stripes. Double crystals are common, and contact double crystals or interspersed triple crystals are formed according to the mica law.
Muscovite schist mainly occurs in acidic magmatic rocks; in addition, it also often occurs in schist, metamorphic schist and gneiss. The muscovite produced in granite often forms crystals with large industrial value; the formation of muscovite in pegmatite is multi-stage; in hydrothermal metal deposits and hydrothermal metamorphic rocks, sericite blooming is very common, forming Sericite; Muscovite is widely distributed in metamorphic rocks. It is formed by clayey rocks at higher temperatures and the participation of potassium.
Muscovite Mica
The most used in industry is muscovite, followed by Phlogopite. It is widely used in building materials industry, fire fighting industry, fire extinguishing agent, welding rod, plastic, electrical insulation, papermaking, asphalt paper, rubber, pearlescent pigment and other chemical industries. Ultrafine mica powder is used as a functional filler for plastics, coatings, paints, rubbers, etc., which can improve its mechanical strength, enhance toughness, adhesion, aging resistance and corrosion resistance. In addition to extremely high electrical insulation, resistance to acid and alkali corrosion, elasticity, toughness and sliding properties, heat and sound insulation, and low thermal expansion coefficient, it is also the first to introduce the smooth surface of the second sheet, large diameter-to-thickness ratio, regular morphology, and additional properties. Focus on the characteristics of strong.
The industry mainly uses its insulation and heat resistance, as well as resistance to acid, alkali, pressure and stripping, as an insulating material for electrical equipment and electrical equipment
Secondly, it is used to manufacture steam boilers, smelting furnace windows and mechanical parts
Mica crushed and mica powder can be processed into mica paper, and can also replace mica flakes to produce various low-cost, uniform thickness insulating materials.
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