There are two basic processes by which silicate clays are formed by weathering of primary minerals. Which of these would likely be responsible for the formation of (1) fine-grained mica and (2)...

There are two basic processes by which silicate clays are formed by weathering of primary minerals. Which of these would likely be responsible for the formation of (1) fine-grained mica and (2) kaolinite from muscovite mica? Explain.

How do you account for the difference in surface area associated with a grain of kaolinite clay compared to that of montmorillonite, a smectite?