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orebody thickness specific gravity sampling costs per hole gold price mining costs/hour mining rate mining factor cut-off grade 1 2 10 000 1 500 10
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sep 05, 2019 · barite is present in a number of zones, known as the bear, moose, beaver and wolf zones. formerly the largest, before it was mined, is the moose zone where a system of barite veins occur within a north-striking, steeply dipping, anastomosing fault zon. barite pinches and swells along the structure and rarely exceeds 3.5 metres in width
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