Which of the following is a non-metallic mineral?
2018
Which of the following is a non-metallic mineral?
Answer: B. Gypsum — ConceptMineral resources are commonly classified as metallic or non-metallic according to whether they serve as sources of metals. Metallic mineral resources…
- A.
Bauxite
- B.
Gypsum
- C.
Hematite
- D.
Limonite
Attempted by 12 students.
Show answer & explanation
Correct answer: B
Concept
Mineral resources are commonly classified as metallic or non-metallic according to whether they serve as sources of metals.
Metallic mineral resources contain metal-bearing compounds from which a metal is extracted; non-metallic minerals are used for properties other than yielding a metal.
Application
Gypsum is hydrated calcium sulfate (CaSO4·2H2O). It is used in plaster, cement, and wallboard and does not serve as an ore for extracting a metal, so it is classified as a non-metallic mineral.
Contrast
Bauxite is the principal ore material for aluminium.
Hematite is an important iron ore.
Limonite is an iron-bearing ore material.
Result
Therefore, the non-metallic mineral among the given choices is gypsum.