copper mining effect

  • Hardrock Mining Risks to Community Health

    Hardrock Mining: Risks to Community Health. I. Executive Summary 2 ... copper and uranium from the ... hardrock mining. Effects 4

  • Copper extraction Wikipedia

    As in all mining operations, the ore must usually be beneficiated (concentrated). The processing techniques depend on the nature of the ore. If the ore is primarily sulfide copper minerals (such as chalcopyrite), the ore is crushed and ground to liberate the valuable minerals from the waste ('gangue') minerals.