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