Q. Which of the following is a non-metallic mineral?
Answer: D
Notes:
Explanation: Metallic Minerals:
These minerals contain metal content and can be sub-divided into three types:
- Precious metals: gold, silver, platinum etc.
- Ferrous metals: iron and other metals often mixed with iron to form various kinds of steel.
- Non-ferrous metals: include metals like copper, lead, zinc, tin, aluminium etc.
Source: NCERT Class 11

