六、层状硅酸盐矿物的结构云母可以剥成薄片,滑石粉柔滑,粘土遇水膨胀成泥浆,在电子显微镜中放大观察,宛如雪片、云团,这是因为它们都是层状结构的硅酸盐矿物。土壤中常见的层状硅酸盐有云母、绿泥石、蛭石、水云母、蒙脱石、高岭石、埃洛石等。云母是原生矿物,绿泥石和蛭石有原生的也有次生的,水云母等其余几种全属 Sixth, the structure of layered silicate minerals mica can be stripped into flakes, talc silky, clay swelling with water into the mud, enlarged observation in the electron microscope, like snow flakes, clouds, it is because they are layered structure Silicate minerals. Common phyllosilicates in the soil are mica, chlorite, vermiculite, hydromica, montmorillonite, kaolinite, halloysite and the like. Mica is a native mineral, chlorite and vermiculite are primary and secondary, hydromica and other remaining species