61 pages matching Geological in this book
Results 1-3 of 61
What people are saying - Write a review
We haven't found any reviews in the usual places.
alloy American antimony assay average blasting Bulletin Bureau of Mines Cadmium Calif capacity cent chromite chromium concentrate conveyor copper Corporation cost County Creek crusher cyanide deposits district domestic dredge drilling electric electrolytic engineer equipment export flotation furnace galena Geological Gold Mines grade grinding haulage hoist Idaho increased installed iron July June Lake lead long tons magnetite manager manganese material ment mesh metal metallurgical method mill mineral Mining Company molybdenum months operations orebody output pany Phelps Dodge Corporation Philippine placer Placer Mining plant pound president production pulp pump pyrite quartz quicksilver quotations recently recovery reported rock rope sample screen Sept shaft shipments short tons silver slimes smelter Smelting steel stoping tailings tests tion tonnage tons treated trucks tungsten tunnel United vein washing York zinc