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Inicio Producto granite ore production costs per tonne

granite ore production costs per tonne

The secondary ore carried from 50 to 1,000 ounces of silver per ton and from $4.00 to $8.00 worth of gold per ton. The replacement ore, which has been exploited chiefly in the Hope mine, consists of quartz, calcite, fluorite, barite, and rhodochrosite, and the ore minerals are argentite, chalcocite, and argentiferous tetrahedrite.