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.