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Gold Mining At One Ounce Per Ton Efficiency

What is the current cost to produce an ounce of silver today.Silver mines operating profitably at 20 per ounce might not survive a drop in price to 15 or an increase in mining costs to 25 per ounce.When all of the easy silver gets mined or when demand for silver fluctuates, many mines may close and the world will face a shortage of.