788 
MINERALS YEARBOOK, 1967 
 
Table 7.—Mine production of gold, silver, copper, lead, and zinc in
1967, by classes 
of ore or other source materials, in terms of recoverable metals 
 NumberSource   of mines i 
Material 
sold or 
treated 
(short tons) 
Gold 
(troy 
ounces) 
Silver 
(troy 
ounces) 
Copper 
(pounds) 
Lead 
(pounds) 
Zinc 
(pounds) 
Lode ore: 
 Dry gold-silver 2 Dry silver 2 
 Total 4 
 Copper 6 Copper-lead-  zinc 1 Lead 3 Lead-zinc 8 
 Total 17 
Other lode 
material: 
Gold-silver 
 tailings 1 
Silver tailings - 1 Copper cleanup, copperlead cleanup, uranium i__ (3) 
Copper 
precipitates. 2 
Lead-zinc mill 
cleanup and 
zincslag'_.. (5) 
 Total 4 — 
Total lode — materiaL.. 22 
23,575 
14,306 
573 
87 
18,623 
10,191 
238,300 
8,900 
 
 
 
37,881 
660 
28,814 
247,200 
 
 
 
20,895,061 
 
127,182 
253 
443,783 
213,122 
 
64,937 
5 
9,140 
1,762,264 
 
535,131 
2,863 
2,507,977 
274,675,800 
 
1,704,300 
600 
2,926,200 
10,848,900 
48,400 
96,399,000 
9,028,600 
 8,900 
57,841,400 
 
21,466,229 
287,204 
4,808,235 
279,306,900 
107,296,300 
66,878,900 
 
15,485 
1,500 
 
 
 
~13 
 
34,571 
 
 
16,220 
480 
  
 
 
 
2 
 
 
 
 
3 
29,771 
3,680 
 
 
758 
 
  
 
 
3,381 
27,300 
1,600 
 
 
199,400 
 
57,427,500 
 
 
8,100 
200 
 
 
 
329,500 
600 
 
 
 
 
1,622,500 
 
67,789 
485 
37,590 
57,663,900 
329,700 
1,623,100 
 
21,571,899 
288,349 
4,874,639 
337,218,000 
107,626,000 
68,502,000 
' Detail will not necessarily add to totals because some mines produce more
than one class of material. 2 Combined to avoid disclosing individual company
confidential data. 
 From properties not classed as mines and excluding the mine count of uranium
mines from which copper was recovered as a byproduct. 
 Excludes uranium ore tonnage. 
 5 properties not classed as mines. 
 
 
Table 8.—Mine production of gold, silver, copper, lead, and zinc in
1967, by types 
of material processed and methods of recovery, in terms of recoverable metals

Type of material processed 
and method of recovery 
Gold (troy 
ounces) 
Silver (troy 
ounces) 
Copper 
(pounds) 
Lead (pounds) 
Zinc 
(pounds) 
Lode: 
 
 
 
 
 
Concentration, and smelt 
 
 
 
 
 
ing of concentrates: 
 Ore'              
 Tailings                   
Total            
Direct-smelting: 
 Ore               
 Cleanup and old 
287,110 
4,165,072 
 3,680 
278,767,400 
1,600 
88,170,800 
60,069,100 
 
287,110 
4,168,752 
278,769,000 
88,170,800 
60,069,100 
 
755 
672,769 
288,400 
19,133,300 
6,814,600 
 slag             
Copper precipitates Tailings           
Total            
Other: 
4 
  
480 
3,347 
29,771 
10,100 
57,427,500 
27,300 
321,900 
1,618,300 
 
1,239 
705,887 
57,753,300 
19,455,200 
8,432,900 
Leaching of copper ore 
 
 
695,700 
 
 
Placer                    
1 
1 
 
 
 
Grand total          
288,350 
4,874,640 
337,218,000 
107,626,000 
68,502,000 
' Includes uranium ore concentrate.