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Mica has a series of unique properties such as the acid resistivity, alkali resistivity, chemical stability,heat durability, incombustibility and excellent insulation. It has an increasingly widespread applications in various fields—asbestos substitute products in the building materials trade,extinguishments, welding electrode, plastics, rubber, paint and coatings, electronic products,pearl luster pigment and oil well boring. MuscoviteMicaChemicalContent SiO2 AI2O3 Fe2O3 CaO Na2O MgO TiO2 K2O H2O 45-48 28-33 2-5 0.03-0.05 0.8-0.5 0.69-0.48 0.06-0.65 7-9.8 0.01-0.13 MuscoviteMicaPhysicalProperties: Density:g/cm3 RefractionRate PhValue Whiteness Ratioofdiametertothickness MohsHardenss Refractoriness L.O.I Moisture 2.87 1.66 7-8 60-80 >60 2.75 1000 3-5% <1% CommodityDefinition Size Raw materialsMica scrap8-20meshDry groundMicaPowderSeriesBuildingmaterials20mesh40mesh60mesh80mesh100mesh16-30 mesh40-100meshPlasticGrade60mesh100mesh200mesh325mesh400mesh600mesh CommodityDefinition Size WetGroundMicaSeriesHighClass100mesh200mesh325mesh400mesh600meshCosmetic grade1250mesh2000meshPearl-lustreCoarsely superfineFinely superfine Grade Sieve size (mesh) Typical uses Coarse flakes 6 Oilwell drilling, artificial snow Med-coarse flakes 10 Christmas ornaments, display material Fine-coarse flakes 16 Concrete block fillers, refractory bricks, gypsum wallboards Coarse-fine powder 30 Metal annealing, absorbent in explosives, disinfectants, automotive components Med-fine powder 60 Welding electrodes, cables, foundry works, pipeline enamels, lubricants, adhesives Fine powder 100 Texture paints, acoustical plaster, ceiling tiles Superfine powder 325 or above Paints, plastics, ruber products, paper, cosmetics