粘土矿物 clay minerals (一)铝硅酸盐粘土矿物的构造特征 1粘土矿物的基本结构单元 Most clay minerals are aluminosilicates the major elements in their structure being oXygen, silicon and aluminum silicon atoms are in tetrahedra, and the aluminum atoms are in octahedra 硅氧四面体 tetrahedron 粘土矿物的 基本结构单元 铝氧八面体 octahedron二. 粘土矿物 clay minerals （一）铝硅酸盐粘土矿物的构造特征 1.粘土矿物的基本结构单元 Most clay minerals are aluminosilicates, the major elements in their structure being oxygen, silicon ,and aluminum. Silicon atoms are in tetrahedra, and the aluminumu atoms are in octahedra. 粘土矿物的 基本结构单元 硅氧四面体 tetrahedron 铝氧八面体 octahedron