What is the most important copper containing ore?
A)cassitrite
B)chalcopyrite
C)chromite
D)cinnabar

Name: What is the most important copper containing ore? A)cassitrite B)chalcopyrite C)chromite D)cinnabar
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Chalcopyrite is the most important copper-containing ore. It accounts for about 50% of the copper mined worldwide. Cassiterite is an ore of tin, not copper. Chromite is an ore of chromium, and cinnabar is an ore of mercury.

What Is the Most Important Copper Containing Ore