mica powder

■　Muscovite(white mica)
Because of high insulation strength, acid-base corrodibility resistance, elasticity, tenacity, heat-resistance, sound insulation, and strong adhesive force, muscovite can be used in many industries such as electric insulation, heat insulation, paint, plastic, rubber, ceramic, petroleum, drilling, electric welding rod, cosmetic and space navigation.
Chemical components:

Chemical composition	SiO2	Al2O3	K2O	Fe2O3	CaO	Na2O	MgO	H2O
Contents(%)	47.32	33.25	11.82	1.81	0.03	0.96	0.91	2.7

Physical properties:

Density (g/m3)	Refractive index	Whiteness (%)	Moisture (%)	Radius-thickness ratio	Heat Resistance (° C)	L.O.I. (%)
2.80	1.60	70-80	<1%	>60	1300	2.82-2.9

■　Phlogopite (golden mica)
Phologopite can be divided into two types: fuscous phologopite (all types of brown and green) and light coloured phologopite (all types of light yellow). Light coloured phologopite is transparent and has vitreous luster, fuscous phologopite is semitransparent, vitreous luster to metallic luster. Pure phologopit is very good insulation material.
Chemical components:

Components	SiO2	Al2O3	MgO	K2O	H2O
Contents%	36-45	10-17	19-27	7-10	<1

Physical properties:

Density(g/cm3)	Transparency (%)	Mosshardness	Whiteness	Refractive index	Coefficient of elasticity (10 6Pa)
2.7-2.9	0-25.5	2.78-2.85	60-70	1.6-1.55	1394.5-1874

■　Sericite
Sericite are extensively used in electric welding rod, rubber, plastic, anti-fire coating, paint, ceramic, heat preservation, cosmetic, pigments, paper, textile, metallurgy, and many other industries.
General chemical components:

Components	SiO2	Al2O3	K2O+Na2O	H2O
Contents%	43.13~49.04	27.93~37.44	9~11	4.13~6.12

Dry sericite chemical components:

Components	Al2O3	SiO2	Fe2O3	K2O	S	P
Contents%	≥13.0	≤75.0	1.0-3.0	4.0	0.03	0.03

Dry sericite physical properties:

Subjects	PH	whiteness	Bulk density	Adhesive rate
indicators	6.5-7.5	≥73.0%	0.20-0.25g/ml	≤1.5%

Wet sericite chemical components:

Components	Al2O3	SiO2	Fe2O3	K2O	CaO
Contents%	≥25.0	≤55.0	1.5-3.0	7.0-9.0	1.5-3.0

Wet sericite physical properties:

Subjects	PH	Density	Bulk density	Whiteness	Adhesive rate
Indicators	5.0-7.0	2.6-2.7g/ml	0.20-0.25g/ml	≥75.0%	≤1.5%

■　Biotite
Biotite is black, fuscous brown, and sometimes with a little light red, green, or other tint. Transparent to semitransparent, ?with vitreous luster or metallic luster. Hardness: 2-3, density: 3.02-3.12g/cm3, they are usually used in construction padding.
Chemical components:

Components	SiO2	Al2O3	K2O	MgO	Na2O	S	P	Burn
Contents%	45.02	10.46	10.18	16.88	0.46	2.43	0.34	1.93

Mica powder:
Wet mica powder physical and chemical indicators:

Size	Screen margin (%)	Sand Content (%)	Bulk density (g/cm3)	Water content (%)	Loss on Ignition (%)	Whiteness	Radius-thickness ratio
125um (120 mesh)	250um <0.1 125um	70
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