Multiple choice

Which is the chief ore of copper?

  1. Galena

  2. Chalcopyrite

  3. Sphalerite

  4. Siderite

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

The main copper sulphide minerals are chalcopyrite (CuFeS2) chalcocite (Cu2S), covellite (CuS), bornite (Cu5FeS4), tetrahedrite ((Cu,Fe)12Sb4S13) and enargite (Cu3AsS4).