Which of the following is not a non-metalliferous mineral ?
Correct answer: D. Cassiterite
- A. Calcite
- B. Fluorspar
- C. Quartz
- D. Cassiterite
Explanation
Cassiterite is tin oxide, SnO2, and is classified as a metallic ore because it is the principal source of tin. Calcite, fluorspar, and quartz are non-metalliferous minerals.
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