Muscovite Mica
China [CN] 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 |
Specification:
20mesh, 40mesh, 60mesh, 80mesh, 100mesh, 150mesh, 200mesh, 325mesh, 400mesh, 500mesh, 600mesh, 800mesh, 1000mesh, 1250mesh or customize.
Application:
| Application field | Main function |
| Jointing compound |
1.Improves the workability 2.Reduces cracking in the finished product |
| Coating |
1.Keep suspension 2.Reduce chalking, shrinking, and shearing of the finished surface 3.Reduce water penetration and weathering 4.Brighten the tone 5.Produce a pearlescent luster |
| Plastics |
1.Improve insulativity and fire resistance 2.Improve tensile strength and bending modulus 3.Improve size stability, reduce shrinkage, warpage and tortuosity 4.Make smoother surface and Improve optical performance |
| Rubber |
1.Enhance the strength and toughness 2.Improve anti-cracking,anti-aging and anti-corrosion performance 3.Improve insulativity and fire resistance 4.Resistant to acid and alkali 5.Improve dielectric property |
| Asphalt roofing |
1.Act as an antistick agent 2.Do not absorb the asphalt and stands up well to weathering |
| Drilling mud | Help to seal porous sections of the drill hole to reduce circulation loss |
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