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Copper ore types: Oxides. As mentioned, copper oxide ores are not as attractive an exploration target as copper sulfide ores due to their lower grade.

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While the copper market is gaining momentum, it is a good time to look at the copper mining champions in terms of copper grade in ore reserves.

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Metal prices as a function of ore grade

The grade of the ore basically tells you how much of a mineral is in it. So - for example - high grade Aluminium ore would have a high concentration.