275The Mineral Industry of Illinois 
 
This chapter has been prepared under a cooperative agreement between the
Bureau of Mines, U.S. Department of the Interior, and the Illinois Geological
Survey, for collecting information on all minerals except fuels. 
 
 
By Robert G. Bottge 1 
 
 
 Illinois mineral production in 1967 was valued at $636.8 million, nearly
3 percent more than in 1966. Increases in total value of production were
recorded for portland cement, coal, fluorspar, fuller's earth, lime, natural
gas liquids, peat, sand and gravel, stone, tripoli, and zinc. Declines in
total value were recorded for masonry cement, clays (excluding fuller's earth),
lead, natural gas, and petroleum. Mineral fuels accounted for 72 percent
of the total pro- 
duction value, nonmetals 27 percent, and metals 1 percent. 
 In 1967, Illinois ranked first among the eight States producing fluorspar,
furnishing 71 percent of the Nation's total. The State ranked fourth in the
Nation in coal output, seventh in sand and gravel output, and third in crushed
stone production. Illinois also ranked high in the processing of mineral
raw materials. 
 
 1 Mining engineer, Bureau of Mines, Minneapolis, Minn. 
 
 
Table 1.—Mineral production in Illinois 1 
 
Mineral 
1966 
— 
1967 
— 
 
 
Quantity Value (thousands) 
Quantity 
Value 
(thousands) 
Cement: 
 
 
 
Portland thousand 376-pound barrels. 
Masonry thousand 280-pound barrels - 
Clays' thousandshorttons~Coal (bituminous) do..Fluorspar short tons.~ 
Lead (recoverable content of ores, etc) do - - - 
 9,203 $28,617 614 1,868 1,894 3,996 63,571 244,837 176,175 8,002 2,285 691

 9,069 
591 
 1,881 
 65,133 
210,207 
 2,384 
$30,186 
 1,851 
 3,799 
252,975 
 9,859 
668 
Natural gas million cubic feet. 
 7,230 860 
5,144 
602 
Peat short tons~Petroleum (crude) thousand 42-gallon barrels~Sand and gravel
thousand short tons -Stone do.. 
 44,374 565 61,982 185,947 38,237 43,201 46,157 60,961 
49,716 
' 60,115 38,801 
48,458 
697 
' 181,581 44,175 
 66,757 
Zinc (recoverable content of ores, etc.)      short tons - 
Value of items that cannot be disclosed: Fuller's earth, gem 
 15,192 4,406 
20,416 
5,652 
stones, lime, natural gas liquids, and tripoli.. - 
XX 34,362 
XX 
37,999 
Total                                      
XX 618,313 
XX 
636,801 
Total 1957-59 constant dollars                  
XX 627,461 
XX 
P 631,189 
 s Preliminary. XX Not applicable. 
 1 Production as measured by mine shipments, sales, or marketable production
(including consumption by producers). 
 2 Excludes fuller's earth, included with "Value of items that cannot be
disclosed." 
 ' Final figure; supersedes figure given in commodity chapter, volume I-IL