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minerals biotite black mica
origin:Hebei China
professional manufacturer located in the origin
product |
Muscotive(silver mica, white mica) |
Chemical formular |
Kal2(Si3AlO10)(OH.F)2 |
Chemical composition |
SiO2:45.2%, Al2O3:38.5%, K2O:11.8%, H2O:4.5%, Na, Ca, Mg, Ti, Cr, Mn, Fe, F:a little |
specification |
6-10, 10-20, 20-40, 40-60, 60-80, 80-100, 150, 200, 325, 400, 600, 800mesh or as per client’s request |
appearance |
colorless & transparent, but most of them is contaminated with green, brown, yellow or pink etc., glassy luster, cleavage surface:pearly luster |
transparency |
71.7-87.5% |
Moh’s hardness |
2-2.5 |
elasticity |
(1475.9-2092.7)x106Pa(15050-21340kg/cm2) |
exfoliation |
About 10 |
product |
phlogopite (Golden mica) |
Chemical formular |
KMg3(AlSi3O10)(F,OH)2 |
Chemical composition |
SiO2:38.7-45%, Al2O3:10.8-17%, K2O:7-10.3%, MgO:21.4-29.4%, H2O:0.3-4.5%, Na, Ti, Mn, Fe, F:a little |
specification |
6-10, 10-20, 20-40, 40-60, 60-80, 80-100, 150, 200, 325, 400, 600, 800mesh or as per client’s request |
appearance |
Yellow, brown, dark brown or black, glassy luster, cleavage surface:pearly luster or submetallic luster |
transparency |
0-25% |
Moh’s hardness |
2.78-2.85 |
elasticity |
(1394.5-1874.05)x106Pa(14220-19110kg/cm2) |
exfoliation |
5-10 |
feature:
Stable physical & chemical properties, acid & alkali resistance, insulative,
high temperature resistance, shiny, good heat resistance, elasticity and tenacity
common application of mica:
building materials industry, fire protection industry, fire extinguishing agent,
welding electrodes, plastics, electric insulation, papermaking, asphalt,
rubber, pearlescent pigment etc.
main application of mica fine powder:
used as filling of plastics, coating, painting and rubber etc in order to improve
the mechanical strength, tenacity, adhesion, anti-aging and anti-corrosion etc.
other products show
muscovite
vermiculit
barite
kaolin
montmorillonite
floating beads/cenosphere/hollow microspheres
tal powder
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