The scanning electron photomicrograph of aluminosilicate particle shows that the pyrophyllite particles take the shape of thin slice, but illite and kaolinite are particles with irregular appearance.

• 矿粒的扫描电镜照片表明： 叶蜡石颗粒主要呈薄片状；伊利石和高岭石颗粒呈不规则形状。