Type:Ore and expanded

Color: Golden and Sliver

Size:6-12mm,3-6mm,2-4mm,1-3mm,20-40mesh,40-80mesh,200mesh,325mesh,400mesh etc.

Appearance: block, flake or powder

Item	SiO2	MgO	Al2O3	Fe2O3	FeO	K2O	H2O	CaO	PH
Content	37-42	11-23	9-17	3.5-18	1-3	5-8	7-18	1-2	8-11

Density (kg/m3)	Loose capacity (kg/m3)	Hardness	Melting point (℃)	Compressive Strength (Mpa)	Refraction limit	Moisture (%)	Moisture rate (%)
220-280	1100-12000	1-1.5	1320-1370	100-150	Ng=1.525-1.561 Ng=1.545-1.581	7	＜2

Application: widely used in the industries of building material industry, fire fighting, fire extinguishing agent, welding electrode, plastic, electrical insulating paper, paper making, asphalt, rubber, pearl pigment chemical industry, etc.


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