Mining’s old guard needs strong medicine
A new report details subpar investor returns in the mining industry over the last decade, particularly big cap diversified companies which have not adapted to new realities.
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Mining junior Prodigy Gold has announced the results of SAG Design test work and SAG Design comminution analysis preformed by Starkey and Associates on representative samples of gold mineralised rock from its Magino mine gold project in northern Ontario. The results of the testing were used to predict grinding equipment and energy requirements for the proposed mill at Magino. Four samples of unsplit HQ core totaling 121.6 kg showed hard competency for SAG milling and moderate-to-hard competency for ball mill grindability with an average Bond Work Index (BWI) of 14.81. Using a design BWI of 15.81, Starkey recommends a conventional single line grinding circuit with one SAG mill followed by two ball mills in parallel, with total throughput of 17,500 t/d. The throughput can be expanded to 20,000 t/d with the addition of a single cone crusher. (more…)
