Biennial report for 1913 and 1914; administrative report and economic and geological papers . ad con-centrates, but averaging 4 to 7 fine ounces per ton for the past five increasing recovery of silver per ton of lead concentrates indicates thatthe galena at lower levels contains the greater silver content. MINERAL PAINTS The only mineral paints made in Illinois are sublimed white lead orbasic lead sulphate and sublimed blue lead or blue fume, both manu-factured at Collinsville, Madison County. MINERAL RESOURCES IN 1913 AND 1914 AJ Table 28.—Tenor of lead and zinc ore and concentrates
Biennial report for 1913 and 1914; administrative report and economic and geological papers . ad con-centrates, but averaging 4 to 7 fine ounces per ton for the past five increasing recovery of silver per ton of lead concentrates indicates thatthe galena at lower levels contains the greater silver content. MINERAL PAINTS The only mineral paints made in Illinois are sublimed white lead orbasic lead sulphate and sublimed blue lead or blue fume, both manu-factured at Collinsville, Madison County. MINERAL RESOURCES IN 1913 AND 1914 AJ Table 28.—Tenor of lead and zinc ore and concentrates in Illinois, 1913-1914 1913 1914 NORTHERN ILLINOIS Total crude ore short tons Total concentrates in crude ore: Lead per cent Zinc per cent Metallic content of crude ore: Lead per cent Zinc per cent Average lead content of galena concentrates per cent Average zinc content of sphalerite concentrates__per cent Average value per ton: Galena concentrates Sphalerite concentrates SOUTHERN ILLINOIS Average lead content of galena concentrates per cent Average value per ton of galena concentrates. 261,300 .19 $$ $ Table 29.—Production and value of lead, zinc, and silver in Illinois, 1910-1914 Year Lead Zinc Silver District Quantity Value Quantity Value Quantity Value NorthernSouthern Total NorthernSouthern Total NorthernSouthern Total NorthernSouthern Total NorthernSouthern Total Short tons 101 272 373 625339 964 687595 1,282 588371 959 492225 717 $8,88823,936 Short tons3,549 4,219 4,065 2,236 4,811 $383,292480,966560,970250,432490,722 Fineounces 2,022 3,0364,7313,5412,112 1910 $1,092 32,824 ,510 • 1911 1,609 86,760 61,83053,550 1912 2,909 115,380 51,74432,648 1913 2,139 84,392 38,37617,550 1914 1,168 $55,392 COAL IN GILLESPIE AND MOUNT OLIVEQUADRANGLES By Wallace Lee (U. S. Geological Survey in cooperation with the Illinois State Geological Survey OUTLINE PAGE Introduction 51 Description of coal beds 53 Coal No. 1 53 Coal No. 2 53 C
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