Table 1.—Mineral production in 
Idaho 1 
 
 
 
1966 
1967 
 
Mineral 
 
 
 
Quantity 
Value 
(thousands) 
Quantity 
Value 
(thousands) 
Antimony ore and concentrate 
 short tons, antimony content  834 
Clays 2 thousand short tons 23 
Cobalt (content of concentrate) thousand pounds~ 1 
Copper (recoverable content of ores, etc.) short tons  4,961Gem stones  NA

W $22 
6 
3,589 
180 
823 
19 
 
4,210 NA 
W $16 
 
3,219 
180 
Gold (recoverable content of ores, etc.)     troy ounces - 5,056Iron ore
(usable) thousand long tons - 11Lead (recoverable content of ores, etc.)
     short tons - 72,334Mercury 76-poundflasks~ 1,134Peat shorttons  WPumice
thousand short tons... 55 
177 
97 
21,867 
501 
W 
107 
4,838 
W 
61,387 
898 
2,040 
W 
169 
W 
17,188 
439 
16 
W 
Sand and gravel do...... 7,544 
Silver (recoverable content of ores, etc.) 
 thousand troy Ounces.. - 19,777Stone thousand short tons_ 2,694Tungsten
ore and concentrate (60 percent W03 basis) short tons_ 2 
6,672 
 
25,571 
5,415 
 
1 
11,246 
 
17,033 
1,986 
 
68 
11,490 
 
26,402 
 
4,833 
 
175 
Zinc (recoverable content of ores, etc.) do - - - 60,997 Value of items that
cannot be disclosed: Cement, garnet (abrasive), lime, peat, perlite, phosphate
rock (marketable production), titanium (1966), vanadium, and values 
 indicatedbysymbolW —_XX 
17,689 
 
 
 
' 32,991 
56,528 
 
 
 
XX 
15,650 
 
 
 
29,631 
Total XXTotal 1957—59 constant dollars XX 
r 114,885 
 
 
 
r 100,185 
XX 
XX 
109,408 
~ 92,387 
 P Preliminary. r Revised. NA Not available. W Withheld to avoid disclosing
individual company confidential data. XX Not applicable. 
 1 Production as measured by mine shipments, sales, or marketable production
(including consumption by producers). 
 2 Excludes fire clay, kaolin, and bentonite (1966); included with "Value
of items that cannot be disclosed." 
  259The Mineral Industry of Idaho 
This chapter has been prepared under a cooperative agreement between the
Bureau of Mines, U.S. Department of the Interior, and the Idaho Bureau of
Mines and Geology 
for collecting information on all minerals except fuels. 
 
 
By Fred V. Carrillo,' Ronald P. Collins,2 and Norman S. Peterse& 
 
 
 Idaho mineral production dipped $5.5 million (4.8 percent) in value in 1967
to $109.4 million. Silver again was the leading mineral product in terms
of value in the State. Phosphate rock, lead, zinc, and silver together accounted
for nearly threefourths of the total mineral output value. The value of lead
and zinc production was down owing to a combination of factors—strike-bound
smelters and lower average annual prices. Gold and copper output, recovered
principally from ores mined in the Coeur d'Alene area, also declined. Production
of construction materials was mixed; cement and stone 
declined, but sand and gravel was up 49 percent. 
 After the U.S. Treasury Department removed the ceiling price from silver
in July, efforts by the producers for additional production were thwarted
by labor disputes. 
 Mercury production was down in spite of a $47 price increase to $489 per
flask measured as an average annual figure. Output was primarily from the
IdahoAlmaden mine. 
 
 1 Mineral specialist, Bureau of Mines, Albany, Oreg. 
 2 Economist, Bureau of Mines, Albany, Oreg.