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珍珠岩是古代火山爆发喷出的酸性岩浆冷却形成的天然玻璃岩石。近年来,酸性天然玻璃岩石引起了地质、建材等工业部门和各方面的重视。珍珠岩有黑耀岩、珍珠岩、松脂岩之分,主要以其化学成份上含水之多少来区分,其主要成份有二氧化硅,氧化铝,氧化钠、氧化钾;用珍珠岩矿石经破碎、分级、烘干高温下急速焙烧,体积发生膨胀所制得的一种白色、微红色轻质小颗粒、内部有蜂窝状的泡沫体产品叫膨胀珍珠岩。
Perlite is a natural glass rock formed by the cooling of acidic magma that erupted in ancient volcanic eruptions. In recent years, acidic natural glass rock has attracted attention from industrial departments such as geology and building materials and various aspects. Perlite is distinguished by black rock, perlite, and pineite, and is distinguished mainly by the amount of water contained in its chemical constituents. Its main components are silica, alumina, sodium oxide, and potassium oxide; it is broken with perlite ore. , grading, drying, rapid roasting at high temperatures, a white, reddish, light, small particles with a volume that expands, and a honeycomb-like foam product called expanded perlite.