China Natural Large Crystal Green Mica Scrap For Decoration factory and manufacturers

Natural Large Crystal Green Mica Scrap For Decoration

Green mica scrap,the most common form in mica, whose chemical formula is KAl₂(AlSi₃O₁₀)(OH)₂, are mained from raw ores.It has obvious layered structure and it is fairly light and relatively soft.Mica is an important rock-forming mineral present in igneous,metamorphic, and sedimentary rocks. As a natural silica, Mica is a very special functional filler due to its high lamellar structure and purity. Mica is chemically inert, resistant to most acids and oxidation, insoluble in water and has a high temperature resistance. It also shows excellent electrical insulation performance.

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Unique Properties

● Layered structure

● Chemical resistance

● Low thermal conductivity

● Heat stability

● Low coefficient of friction

● Vibration damping (acoustics)

● Flexible

Chemical Composition

Element	SiO₂	Al₂O₃	K₂O	Na₂O	MgO	CaO	TiO₂	Fe₂O₃	S+P
Content (%)	38.0-50.0	13.3-32.0	2.5-9.8	0.6-0.7	0.3-5.4	0.4-0.6	0.3-0.9	1.5-5.8	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	1×10^11-12	1200

Processing Technology

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	1×10^11-12	1200

Application

1) Used in decorating, paint and coating.

(2) Large green crystal mica usually used for decoration , lampshade.

(3) It can be used in fire-fighting dry powder, protecting layer of welding rods, conducting wires and electric cables.

(4)Mica is widely used in Polymers/Plastics Rubber, Paints, Coatings, Fiber cement construction panels/ Wallboards, Ceramics, Sound-damping, Cosmetics, Electrodes, Brake pads, Oil drilling.