الوصف

Vermiculite is a layered structure of the water with magnesium silicate minerals, aluminum secondary metamorphic like mica, usually the crude ore by black (gold) mica by hydrothermal alteration is weathering and into, or role for its heated water loss when inflation is buckling shape, form like a leech, therefore calls vermiculite.

Vermiculite patent for M g x  (H2O) [Mg3 x (AlSiO3O*0) (H2O)]

Chemical components in:

Molecular formula SiO2   MgO  Al2O3  Fe2O3  H2O CaO    PH
Content (%)      ****2  ****3   ***7  3.***5   ***1  **2     **1


Vermiculite according to stage is divided into ShiYuan vermiculite mine and expanded vermiculite, the color classification can be divided into golden vermiculite, silvery white vermiculite, ivory vermiculite.

ShiYuan vermiculite mine after high temperature roasting the volume can rapidly expanding ***0 times, the proportion of expansion of **0 **0 kg/m3, has the very strong thermal insulating properties.