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蛭石是在黑云母和金云母自然风化时由于水合作用所形成的一种天然矿物。决定蛭石工业价值的最重要的特性是采用一定的方法和加热制度时其膨胀的性能,它的体积可以增大20—30倍。蛭石的离子交换、吸附、防放射和其它一些特性有实际效用。膨胀蛭石是颗粒状的软质矿物,根据它粒度组成的不同其密度在70—150kg/m~3。它具有良好的隔热和隔音性能,呈美丽的金黄色和银白色,在化学上和生物学上是稳定
Vermiculite is a natural mineral formed by hydration when biotite and phlogopite naturally weather. The most important property that determines the industrial value of vermiculite is its expanded performance when using certain methods and heating regimes. Its volume can be increased by 20-30 times. Vermiculite ion exchange, adsorption, anti-radiation and some other features have practical utility. Expanded vermiculite is a granular soft mineral, which has a density of 70-150 kg / m3 depending on its particle size composition. It has good thermal and acoustic properties, is beautifully golden and silvery white, chemically and biologically stable