What is the Difference Between Phlogopite Mica and Dehydrated Mica?

May. 09, 2020

As a Wet Ground Mica Factory, let me tell you.

Dehydrated mica is the color of natural mica that is roasted and dehydrated at a high temperature by golden or red copper. It is called dehydrated mica and is also called calcined mica. Some people call it "phlogopite" is inaccurate, can only be called "golden mica". The dehydrated mica, because its water content is about 10 times lower than ordinary mica, has produced many special properties and is widely used in many fields. The industry mainly uses its high electrical insulation and heat resistance. Mainly used in electrical, national defense, building materials, fire protection, welding electrodes, plastics, electrical insulation, paper, rubber, pearlescent pigments and other fields. 

Phlogopite Mica

Phlogopite Mica

Phlogopite Mica 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. Not conductive. Colorless or brownish-yellow under microscope transmission light. Phlogopite has better heat resistance than muscovite and is a good heat-resistant insulating material. Ultrafine phlogopite powder is used as functional fillers for plastics, paints, paints, rubbers, etc., which can improve its mechanical strength, enhance toughness, adhesion, anti-aging and corrosion resistance. Industry mainly uses its insulation and heat resistance, as well as acid resistance, alkali resistance, pressure resistance and stripping properties. Phlogopite powder is used as an insulating material for electrical equipment and electrical equipment.

Phlogopite is characterized by complete cleavage of mica, yellow-brown color and golden-like reflection. Phlogopite powder is different from muscovite in that it can be decomposed in boiling sulfuric acid and at the same time produce a kind of milky solution, but muscovite cannot. The general characteristics of phlogopite are the same as muscovite. Phlogopite powder is mainly distinguished from other mica according to its brown color and pale golden color. The identification method of biotite similar to color is that its color is lighter than biotite. Tear the two into a thin slice and compare them on white paper. Phlogopite is pale yellowish brown, while biotite is grayish green or smokey. The exact identification of colorless or other color phlogopite requires the aid of a microscope.

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