Which of the following is not a Metallic mineral?
Gypsum
Explanation for correct option:
A. Gypsum
Metallic minerals:
Thus, the mineral that is not metallic in nature is Gypsum as it does not contain metals in its composition.
Explanation for incorrect options:
Bauxite, Limonite as well as Hematite are metallic minerals while Gypsum is a non-metallic mineral. Thus options B, C, and D stand incorrect.
Hence, the correct option is A i.e. Gypsum.