Question

Which of the following is a non-metallic mineral?
A. Iron ore
B. Copper
C. Bauxite
D. Mica

Answer 1

Hint: Non-metallic minerals are an extraordinary group of chemical elements from which no new item can be created in the event that they are liquefied.

Complete answer: The nonmetallic minerals industry is most popular for the creation of concrete, pottery such as ceramic, glass, and lime items. The nonmetallic minerals are not as hard as metallic minerals and do not have a sparkly surface.

Now let us examine the options
Option A: Iron ores are usually minerals and rocks of which metallic iron can be extracted. Iron ore is the primary source of iron for the iron and steel industries in the world.
Option B: Copper is a metallic mineral which is a soft, ductile and malleable with a high electrical and thermal conductivity. Copper is reddish in colour and is mostly used in electrical types of equipment such as motors and wires. It is also used in plumbing, industrial machinery and roofing.
Option C: Bauxite along with coal and iron are the most-mined minerals in the world. Aluminium is extracted from bauxite. Through the process of electrolysis pure aluminium is obtained from bauxite.
Option D: Mica is formed through the collection of silicates. It is a non-metallic mineral which occurs naturally and is a good insulator of a wide variety of applications in the electrical and electronic industry.

Thus, the correct answer is option (D).

Note: Non-metallic minerals are frequently discovered implanted in sedimentary rocks and young fold mountains. They are a poor transmitter of heat and electricity. They are not ductile and pliant, so they mostly break into bits and pieces when hit hard.