Muscovite Mica

Muscovite mica powder is a mineral name given to a group of minerals that are physically and chemically similar. They are all silicate minerals, known as sheet silicates because they form in distinct layers. Micas are fairly light and relatively soft, and the sheets and flakes of mica are flexible. Mica is heat-resistant and does not conduct electricity. There are 37 different mica minerals. The most common include: clear muscovite, brown phlogopite, black biotite and sericite.From processing technic, it can be divided into dry ground mica and wet ground mica. Muscovite is the most common mineral of the mica family. It is an important rock-forming mineral present in igneous, metamorphic, and sedimentary rocks. It is also the most widely used mica. Appearance: Not only transparent and nearly colorless, most have a slight brown, yellow, green, or rose-color tint. Luster: Pearly to vitreous Crystal form: Usually in large crystal with a pseudohexagonal outline Distinguishing feature: 1.Insulation 2.High temperature resistant. 3.Stable physical and chemical property. 4.Good heat insulation, elasticity and toughness. Chemical Composition: Element SiO₂ Al₂O₃ K₂O Na₂O MgO CaO TiO₂ Fe₂O₃ S+P Content (%) 48.5-50 28-32 8.5-9.8 0.6-0.7 0.23-0.81 0.4-0.6 0.8-0.9 1.5-4.5 0.02 Physical Property: Thermal Endurance (℃) Mohs Hardness Density (g/cm3) Dielectric Strength (KV/mm) Tensile Strength (MPa) Surface Resistivity (Ω) Melting Point (℃) 650 2.5-3 2.8-2.9 115-140 110-145 1×1011-12 1200

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