
perlite grinding mill can solve the problem of dust ...
Perlite is a glassy rock from the acid lava after volcanic eruption and rapid cooling.Perlite ore includes perlite, obsidian and pitchstone. The difference between them is that perlite has a circular arc-shaped crack due to condensation, its water content is 2~6%; pitchstone has a unique resin luster gloss, its water content is 6~10%; obsidian has glass gloss and conchoidal fracture, its water ...