Multiple choice

Which of the following sets represents carbonate ores only?

  1. Dolomite, Azurite, Chalcopyrite, Malachite

  2. Cassiterite, Pyrolusite, Azurite, Galena

  3. Pyrolusite, Magnetite, Siderite, Malachite

  4. Dolomite, Azurite, Siderite, Malachite

  5. Magnetite, Chalcopyrite, Malachite, Galena

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dolomite: CaCO3.MgCO3 (Carbonate ore) Azurite: 2[CuCO3].Cu(OH)2 (Carbonate ore) Siderite: FeCO3 (Carbonate ore) Malachite: CuCO3.Cu(OH)2 (Carbonate ore)