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MONTANA BUREAU OF MINES AND GEOLOGY ^J 



BUTTE, MONTANA 59701 



Mine Tailings Analyses Results 



July 21, 1975 



Table I 



Water Extract - C558 ml ) 



Cd 

 Cu 

 Fe 

 Ni 

 Pb 

 Zn 



mg/1 (ppm) 



<.01 

 .01 

 .01 

 .02 

 .05 

 .13 



Table II 



Mine Tailings - Segment "A" "^-^ 



Cd 

 Cu 



Fe 

 Ni 

 Pb 



Zn 



Au* 



Ag* 



/ 



., />' 



■ I 



18.1 



608. 



144,800. 



81.0 



1,232. 



2,780. 



.069 

 12.690 



i 

 fe 

 fe 

 fe 



fe 



002 troy oz./ton ^ 

 370 troy oz./ton p 



* V 



Note: Au and Ag were determined by fire assay 



Table III 



Size Gradation (Sieve) Analysis - Segment "B' 



Tyler Sieve (mesh) 

 U.S. Standard No. 



+ 60 

 -60 



-80 



-100 



-150 



Grams 

 Recovered 



77.1 

 154.4 

 118.5 

 187.2 

 208.8 



(W/W) 



5.8 

 11.6 



8.9 

 14.1 

 15.7 



(cont .) 

 A-57- 



T-E BUREAU Of MINES ANO GEOLOGY WAS ESTABLISHED. BV LAW IM 19 113 TO PROMOTE EFFICIENT DEVELOPMENT OF MONTANA'S v., NEPAL RESOURCES Br GATHERING AND PUBLISH- 

 ING INFORMATION ON THE GEOLOGY. TOPOGRAPHY. AND MINERAL DEPOSITS OF THE STATE. INCLUDING METALS. NON-METALS. COAL OIL. GAS. AND UNDERGROUND WATER SUPPLY. 



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