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What Is Average Grade Of Ore

in an average mine, how much ore must be processed to,the first point to make is that there is no such thing as an “average mine”, they are all unique, such is the nature of the natural world. nonetheless, this i understand the general thrust of your question. there are two factors that need to be co....making the grade: understanding exploration results,if both of these questions can be answered ‘yes’, then the threshold for what constitutes ‘high-grade’ will be dramatically lower. as a rule of thumb, open pit mining can process ore for $10 per tonne and, where the ore grade is more than double that at $20 per tonne, results would be economic. consider that 1% of a metric tonne is 22.ore minerals : what are ore minerals? | geology page,the ore quality, and density of a rock or metal ore, as well as its occurrence type, can directly affect the ore mining costs. it is therefore necessary to weigh the extraction cost against the metal value contained in the rock to determine which ore can be processed and which ore is too low a grade.gold processing - mining and concentrating | britannica,gold processing - gold processing - mining and concentrating: the nature of the ore deposit determines the mining and mineral processing techniques applied. oxide ore deposits are frequently of such low grade (e.g., 3 to 10 parts per million) that extensive mineral processing cannot economically be justified. in this case they are merely shattered by explosives and then piled into heaps for.

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