Q. How many of the following are oxide minerals?
- Haematite
- Magnetite
- Cassiterite
- Galena
- Dolomite
- Siderite
Select the correct option from the codes given below:
Answer:
Only Three
Notes: Haematite (Fe₂O₃), Magnetite (Fe₃O₄), and Cassiterite (SnO₂) are oxide minerals. Galena (PbS) is a sulphide, Dolomite (CaMg(CO₃)₂) and Siderite (FeCO₃) are carbonates. Thus, only options 1, 2, and 3 (Haematite, Magnetite, and Cassiterite) are oxide minerals.