Show LARGE SAVING OF CINO CHINO ORE Metallic Copper With Sulphides Makes for High Degree of Extraction Of Or the 34 2400 acres of ground gund owned owne by bythe byth bythe the th Chino Copper company according to toa t toa a 8 special circular just issued by Hayden Stone Co acres acre is ground gound In which the prospect of finding ore is I excellent Over tons of actual and an probable ore averaging 24 41 p per r cent copper have been ben blocked blo ked out by pr underground work workings workings ings and drill dri holes Churn Chur drilling is rap rapidly rapIdly rapidly idly adding to the developed develop tonnage and no doubt will wi continue to do so s All Al con eon conditions Indicate a high extraction and a acost acost acost cost marketed on nine cents a pound of copper The ore of the Chino property Is II simi similar smi smilar lar to others of the copper propositions in that commercial ore is the th result of downward concentration the principal proportion of the copper occur occurring our occurring ring as sulphides sulphide but there is a dlf r rence ence in the Chino Chine ChIn in the fact fat that a con considerable considerable considerable proportion of metallic copper oc cc occurs occurs curs along along with wih the sulphides sulphide and this fact indicates a very ver simple metallurgical cal cat problem and an unusually high de degree degre degree gree gre of extraction A small smal hastily built buit and poorly equipped mill mi erected ten years ago by lessors leasers Is on the property and is I treating about abut 13 tons a day The recovery recover m in i has run rn from 90 00 8 to 70 7 per pr cent according to the locality from which the ore or vas was derived With b a 8 mill mi there is no doubt of being bing able to extract 70 per cent of ot the copper in ore at et t a pr concentrating ratio rato of into 1 i which allowing for smelter losses los would return 31 pounds per pr ton tonA tonA tonA A considerable proportion of the ore can be removed by steam shoveling Other ore bodies bie will wi have hae to be b worked by b caving methods |