What is perlite ？

Perlite is a volcanic rock mined in open-pit quarries. The volcanic glass, or perlite, is formed when lava (molten rock) spews out of a volcano, and cools in a rapid manner. Because of rapid cooling, water is trapped within the rock, and the lava forms into a glass-like structure. Perlite contains 2 to 5 percent water and is a silicate rock, meaning it contains a “high percentage of silica (Si),”

Agriculture, forestry and horticulture:
Soil modification, regulating soil compaction, preventing crop lodging, controlling fertilizer efficiency and fertility, and serving as a diluent and carrier for pesticides and herbicides
Construction industry:
Concrete aggregates; lightweight, thermal insulation, heat-insulating and sound-absorbing panels; fillers, mortar and other building materials for fire-proof roofs and lightweight anti-freeze, earthquake-proof, fire-proof, radiation-proof and other high-rise building walls; various industrial equipment, pipe insulation layers; Inner walls of various cryogenic and cold storage projects; inner walls of storage of low boiling point liquids and gases, and inner walls of transportation vehicles, etc.
Filter aids and fillers:
Used to make molecular sieves, filters, and detergents; used in winemaking, juice, beverages, syrups, sugar, vinegar and other food processing and manufacturing industries to filter fine particles, algae, bacteria, etc.; to purify various liquids; to purify water to the point where it is harmless to humans and animals. The degree of harm; chemical industry plastics, spray paint industry detoxification, purification of waste oil, petroleum dewaxing, fractionated alkanes, hydrocarbons; as a filler in pigment enamel, glaze, plastic, resin and rubber industry; catalyst in chemical reactions, and oil wells grout mix
Machinery, metallurgy, hydropower, light industry:
As ingredients for various heat insulation, thermal insulation glass, mineral wool, ceramics and other products