Mica schist from more Silicon muscovite, quartz, garnet and rutile, which can arise albite, epidote and tetrahedrite hard chlorite, Garnet rich Fe and Mg (Table 1), multiple silicon muscovite of Si up 3.369, Hypertension is also portfolio. Insulation and a low thermal resistance of functional loss.
    Mica group minerals divided into two sub-clan, a total of nine minerals. Muscovite Asian nation, sodium biotite, muscovite, Roscoelite, turquoise sea; Phlogopite - biotite Asian nation, Golden phlogopite - biotite, mica three zinc, lithium iron mica, manganese lithium - mica, copper and uranium Mica lithium mica.

Mica unit	Muscovite film

    Mica is containing lithium, sodium, potassium, magnesium, aluminum, zinc, iron, Vanadium and other metals with layered structure and water content of aluminum silicate minerals known family. Including Muscovite, biotite, phlogopite, biotite, such as lithium. Industrial application of mica minerals and raw materials is the muscovite mica of mica and broken tablets mica and sericite. more use of muscovite, followed by the mica. As Mica has high electric insulation, better transparency, can be an excellent sexual exploitation, higher chemical stability, better reductive and the high temperature will be able to maintain this excellent physical and chemical properties, therefore, it mainly as a very important insulating material widely used in the electronic, electrical, telecommunications, electronics, aviation, transport, instrumentation, metallurgy, building materials, light industry and other industrial sectors, as well as defense and sophisticated industrial fields. Since the 1970s, due to the capacitors, electrical insulating materials and support dielectric materials, Mica use film has been broken by Mica for raw materials made of paper Mica replaced Communication tubes has been most of the semiconductor integrated circuits replaced by the consumption structure caused fundamental changes, Thus tablets Mica significant decline in demand, and the demand for scrap mica growing. Along with the development of science and technology in recent years mica minerals in building materials, geological exploration, lubrication, painting, food, cosmetics and other aspects of the expansion of mica and sericite broken mineral raw materials will have broad application prospects. />
Chemical composition : muscovite chemical formula for KAl2 (AlSi3O10) (OH) 2; Magnesium Silicon muscovite chemical formula of (Fe2 +, M g) (Fe3 +, Al3 +) (AlSi7O20) (OH) 4; sericite chemical formula for KAl2 (Si, Al) 4O10 (OH, F) 2; The chemical formula for Mica KMg3 (AlSi3O10) (F, OH) 2 Mica such aluminum silicate minerals, with continuous layered silicate structures, with the complete very cleavage, Stripping to be elastic sheet, quality soft curved, transparent colorless, with thick pieces of translucent gray, brown, light green, red roses, with glass pearls and silk or gloss, hardness 2.5 ~ 3, the proportion of 2.75 - 3.0, the acid. Mica unit general Opaque, high school biology class used it to block the light and prove the coleoptile Phototropism

Mica chemical composition
Ingredients	SiO2	MgO	Al2O3	Cao	Fe2O3	K2O	Na2O	Loss on Ignition
Content%	44.3	0.62	31.21	0.75	5.74	10.58	1．17	4．97