The correct answer is option 2: Mica. Mica is a non-metallic mineral that is commonly used in insulation, electronics, and other industrial applications. It is a silicate mineral that occurs in thin, sheet-like layers and has excellent thermal and electrical conductivity. Mica is known for its ability to withstand high temperatures and resist chemicals, making it an ideal material for insulation and electrical components. It is abundant in many parts of the world and is often mined for commercial use.

Option 1: Iron is not a non-metallic mineral. Iron is a metallic element and is used in the production of steel and other metal alloys. It is an essential component of many industries, including construction, manufacturing, and transportation.

Option 3: Copper is also not a non-metallic mineral. Copper is a metallic element known for its excellent electrical conductivity and corrosion resistance. It is used in various industries, including electrical wiring, plumbing, and electronics.

Option 4: Bauxite is a non-metallic mineral, but it is not the correct answer in this case. Bauxite is an aluminum ore that is used in the production of aluminum. It is a rock-like material that is rich in aluminum hydroxide minerals. Bauxite is typically mined in