Q. Consider the following pairs Mineral : Composition 1. Amphibole : Calcium-magnesium - iron silicate 2. Mica : Magnesium - iron - aluminium silicate 3. Quartz : Silicon dioxide Which of the above pair/pairs is/are correctly matched?

• A. 1 and 2 only
• B. 2 and 3 only
• C. 3 only
• D. 1, 2 and 3

Correct Answer: D