Report of the State Mineralogist . t 3000 feet west of Aeroplaneworkings is Brockman claim. Here tunnel has been driven 108 feetto cut an ore body striking east and west, width 8 to 10 feet. Orefrom Brockman and Greenhole claims trammed 2000 feet to equipment, 100 ton concentration mill, equipped with one10 x 20 Jaw crusher, 1 Marcy ball mill, 5 mesh impact screen, 3Diester baffle classifiers, 6 Overstrom tables; 1 Wilfley table. Oretreated varied from to W03. 60% extraction. Idle. Owner, Standard Tungsten Company; president, A. B. Clark; secre-tary and manager, L. E.
Report of the State Mineralogist . t 3000 feet west of Aeroplaneworkings is Brockman claim. Here tunnel has been driven 108 feetto cut an ore body striking east and west, width 8 to 10 feet. Orefrom Brockman and Greenhole claims trammed 2000 feet to equipment, 100 ton concentration mill, equipped with one10 x 20 Jaw crusher, 1 Marcy ball mill, 5 mesh impact screen, 3Diester baffle classifiers, 6 Overstrom tables; 1 Wilfley table. Oretreated varied from to W03. 60% extraction. Idle. Owner, Standard Tungsten Company; president, A. B. Clark; secre-tary and manager, L. E. Porter, H. W. Hellman building, Los Angeles,California, Bibl.: Adolph Knopf, IT. S. G. S., Bull. 640b. Rept. XV, 21—8725 304 MINKS AND MINERAL RESOURCES. Tungsten Mines Company. Formerly known as Little Sister andJack Rabbit group of mines, situated 8 miles west of Bishop in Tung-sten hill. Discovery made April, 1916, started mining May, 1916, millerected during the summer, and milling operations started the first of. F/ow SheetjSta/7_ ^o_r^_ 7u rigs ten A?*J/. 2oo Yo/v J3/1. /QX/6 CrusAer? T ^ Co/orac/o S/taJr/nf Screen Sftes A
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectminesandmineralresou
