Black mica factory86-15203215701

【introduction 】

Black mica mica minerals in a, for silicate minerals. Biotite is mainly produced in metamorphic rocks, granite and other rocks in there. Black mica color from black to brown, red or green, a shiny glass. Shape of plate shape, columnar. In recent years, black mica is also widely used in stone and other decorative coatings.

【Products performance】

Black mica water solution effects can be altered to chlorite, muscovite and mica and other minerals. Black mica with high iron content, poor insulation, far less muscovite. Larger particle size black mica, easily according to the lamellar morphology, darker color and elasticity, with mica perfect cleavage, and heated, can be slightly magnetic characteristics to differentiate in the plutonic and hypabyssal rocks clock, particularly acidic or alkaline rocks, mostly containing black mica.

【usage】

Widely used in building materials industry, the fire industry, fire extinguishing agent, welding, plastic, electrical insulation, paper, paper, rubber, paint, coatings, pearlescent pigments and other chemical industry. Ultra-fine mica powder as plastics, coatings, paints, rubber and other functional fillers, which can improve its mechanical strength, enhanced toughness, adhesion and corrosion resistance and anti aging. In addition to having high electrical insulating resistance, acid and alkali corrosion resistance, elasticity, toughness and sliding resistance, heat-resisting, small thermal expansion coefficient and other properties, and launched the first film body two smooth surface, than large diameter thick, morphological rules, strong adhesion characteristics.

【the physical properties】

Biotite mica crystal morphology and the same. Color is black, dark brown, sometimes with reddish, greenish or other color. Titanium containing high is reddish brown, contain high iron green. Transparent to opaque. Vitreous luster, black is a semi metallic luster. Hardness23, proportion3.023.12.