1.10 Describe the three different types of clay minerals (kaolinite, illite, montmorillonite) described in the text and lecture. Explain why these three clay minerals are so different? 1.11 What is the major difference between kaolinite and montmorillonite? Explain this difference in terms of the basic mineral structure of each clay (i.e. the stacking of the S-T and A-O sheets). 1.12 Why does Kaolinite absorb relatively small amount of water as contrasted to the amount of water that Montmorillonite? Explain the difference by way of discussing the structure of the different clay particles, and the presence of the diffuse double layer of water.