Multiple choice

Which of the following sets represents only carbonate ores?

  1. Dolomite, Azurite, Chalcopyrite and Malachite

  2. Cassiterite, Pyrolusite, Azurite and Galena

  3. Pyrolusite, Magnetite, Siderite and Malachite

  4. Dolomite, Azurite, Siderite and Malachite

  5. Magnetite, Chalcopyrite, Malachite and Galena
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dolomite is a CaCO3.MgCO3, Azurite is a 2[CuCO3].Cu(OH)2 , Siderite is a FeCO3 and Malachite is a CuCO3.Cu(OH)2 all are Carbonate ores.

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