Multiple choice Which of the following sets represents carbonate ores only? Dolomite, Azurite, Chalcopyrite, Malachite Cassiterite, Pyrolusite, Azurite, Galena Pyrolusite, Magnetite, Siderite, Malachite Dolomite, Azurite, Siderite, Malachite 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)