7.2.2. Three-layer Sheet Minerals

Try these first

1. 1.

   What is the main characteristic of montmorillonite?

   Hint

   Think about how it behaves when wet.

2. 2.

   Define illite in terms of stability.

   Hint

   Consider what happens to it when it’s dry.

3. 3.

   What is the primary function of gibbsite in three-layer sheet minerals?

   • Water absorption
   • Nutrient retention
   • Structure support
   • Heat resistance

   Hint

   Think about the layers in the minerals.

4. 4.

   Montmorillonite is known for which of the following characteristics?

   • True
   • False

   Hint

   Consider how it interacts with water.

5. 5.

   Explain how the unique features of montmorillonite can impact construction projects in regions with fluctuating moisture levels.

   Hint

   Think about how changes in volume can affect structures built on it.

6. 6.

   Evaluate the role of illite in agricultural practices focused on soil sustainability.

   Hint

   Consider the balance of nutrients and moisture for healthy crops.