Phlogopite (Golden mica)

short description:

Phlogopite is characterized by complete cleavage of mica, yellow brown color and golden like reflection. It is different from Muscovite in that it can decompose in boiling sulfuric acid and produce an emulsion solution at the same time, while Muscovite cannot; It differs from biotite in light color. Phlogopite can be corroded by concentrated sulfuric acid, and can be decomposed in concentrated sulfuric acid to produce an emulsion solution at the same time. Sodium, calcium and barium replace potassium in the chemical composition; Magnesium is replaced by titanium, iron, manganese, chromium and fluorine instead of Oh, and the varieties of phlogopite include manganese mica, titanium mica, chrome phlogopite, fluorophlogopite, etc. Phlogopite mainly occurs in contact metamorphic zones of ultrabasic rocks such as kimberlite and dolomitic marble. Impure magnesian limestone can also be formed during regional metamorphism. Phlogopite is different from Muscovite in physical and chemical properties, so it has many special functions and is used in many important fields.

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Product description

Phlogopite is widely used in building materials industry, fire fighting industry, fire extinguishing agent, welding rod, plastic, electrical insulation, papermaking, asphalt paper, rubber, pearlescent pigment and other chemical industries. Superfine phlogopite powder can be used as a functional filler for plastics, coatings, paints, rubber, etc., which can improve its mechanical strength, toughness, adhesion, anti-aging and corrosion resistance.
Phlogopite is divided into dark phlogopite ( brown or green in various shades ) and light phlogopite ( pale yellow in various shades ) . Light-colored phlogopite is transparent and has glass luster; dark-colored phlogopite is translucent. Glass luster to semi-metal luster, the cleavage surface is pearl luster. The sheet is elastic. Hardness 2─3 ,The proportion is 2.70--2.85 ,Not conductive. Colorless or brownish yellow under microscope transmission light. The main performance of phlogopite is slightly inferior to muscovite, but it has high heat resistance and is a good heat-resistant insulating material.

chemical composition

Ingredients SiO 2 Ag 3 MgO O O
Content (%) 36-45 1-17 19-27 7-10 <1

Product main specifications: 10 mesh, 20 mesh, 40 mesh, 60 mesh, 100 mesh, 200 mesh, 325 mesh, etc.

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