Transactions . y Nipissing Re-duction Company, averaged 27-94 oz. silver per ton. During1910, the new mill at the Trethewey saved 86-4% from ore aver-aging 27 oz. per ton, and the Temiskaming is now recovering88-90% on ore averaging 28-2 oz. per ton. Since May, 1910, the mills have been operated by electricpower, and thus important reduction made in costs. Shipments of concentrates were: in 1908, 1,137 tons; in 1909,2,948 tons, and in 1910, 6,845 tons. The average tenor wasabout 1,1(XJ oz. per ton. The milling ore, chiefly wall rock of rich veins, is hard andcompact, and contains the silver in
Transactions . y Nipissing Re-duction Company, averaged 27-94 oz. silver per ton. During1910, the new mill at the Trethewey saved 86-4% from ore aver-aging 27 oz. per ton, and the Temiskaming is now recovering88-90% on ore averaging 28-2 oz. per ton. Since May, 1910, the mills have been operated by electricpower, and thus important reduction made in costs. Shipments of concentrates were: in 1908, 1,137 tons; in 1909,2,948 tons, and in 1910, 6,845 tons. The average tenor wasabout 1,1(XJ oz. per ton. The milling ore, chiefly wall rock of rich veins, is hard andcompact, and contains the silver in the native form. This silveris not commonly disseminated through the rock as a replacementdeposit, but occurs rather as a filling, generally with smaltite orniccolite, in the minor fractures. Most of the ore is in theHuronian series, which are very fine to medium grained siliceoussediments. Ore in diabase is characterized by smaller percentageof the associated arsenides. The; Keewatin rocks vary consider- . nt. MtKinl«V-I)arragh ?<haft lum-M* ant! mill. (<)l»»lt
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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1895
