Which ore exists as carbonate ore?
- A. Siderite
- B. Iron Pyrite
- C. Anglesite
- D. Rutile
Answer: A. Siderite
- Siderite is a mineral with the chemical formula FeCO3, which is iron carbonate. This makes it a bona fide carbonate ore.
- Iron pyrite (FeS2), anglesite (PbSO4), and rutile (TiO2) are all sulfide, sulfate, and oxide ores, respectively. They do not contain carbonate ions in their chemical composition.
Therefore, the only option that is a true carbonate ore is A. Siderite.