The mica categories produced by the **mineral processing plant** in Lingshou County include muscovite, phlogopite, biotite, sericite, dehydrated mica, mica flakes, and others. Based on the processing method, they are classified into dry-process mica and wet-process mica.

Main specifications include: 20 mesh, 40 mesh, 60 mesh, 80 mesh, 100 mesh, 200 mesh, 325 mesh, 400 mesh, 500 mesh, 600 mesh, 800 mesh, 1000 mesh, 1250 mesh, 2500 mesh.

Mica primarily crystallizes in the monoclinic system, forming pseudo-hexagonal thin flakes, scales, plates, and occasionally pseudo-hexagonal columns. Its hardness ranges from 2 to 3, with a specific gravity of 2.70 to 3.20. The refractive index of mica increases with higher iron content, ranging from low positive relief to medium positive relief. Iron-free varieties appear colorless in thin sections, while higher iron content results in deeper coloration, accompanied by enhanced pleochroism and absorption.

Within Lingshou County, the rock strata contain abundant mica minerals. According to geological surveys, the reserves of crushed mica reach 1.7 million tons, with high ore grade and excellent quality, making it the ** largest crushed mica production area in China.

Physical Properties: Mica is a layered silicate mineral containing water, with many varieties. Mica powder exhibits unique resistance to acids and alkalis, chemical stability, as well as good insulation, heat resistance, non-flammability, and corrosion resistance.

Uses of Mica: The most widely used type in industry is muscovite, followed by phlogopite. It is extensively applied in the construction materials industry, fire protection industry, fire extinguishing agents, welding electrodes, plastics, electrical insulation, papermaking, asphalt paper, rubber, pearlescent pigments, and other chemical industries.