' Data does not add to total due to independent rounding.656 
MINERALS YEARBOOK, 1967 
 
in brick and tile products, and to a lesser extent, in expanded clay products,
portland cement, and pottery. Bentonite was processed for filter and absorbent
uses. Oklahoma Brick Co. began an expansion project to double plant capacity
of its brickmaking facility at Union City. Five new warming ovens, a 150-foot
wind tunnel dryer, and a 340-foot tunnel kiln are scheduled for construction.

 
 
Table 13.—Clays sold or used by producers' 
(Thousand short tons and thousand dollars) 
 
Year 
Quantity 
Value 
1963                   
898 
$911 
1964                   
835 
854 
1965                   
794 
806 
1966                   
745 
754 
1967                   
744 
869 
' Excludes bentonite. 
 
 
 Gypsum.—Deposits in the Nescatunga and Shimer Gypsum Members of the
Permian Blame Formation in Blame, Canadian, and Jackson Counties were strip
mined to provide raw material for manufacturing wallboard, plaster, other
building materials, and as a retarder in portland cement. Gypsum deposits
in the Cloud Chief Formation, also Permain in age in Caddo, Comanche, and
Washita Counties, were strip mined for wallboard manufacture and as a soil
conditioner. 
 
 Lime.—Much of the lime output was used by chemical plants in the Pryor

area and in municipal water plants. Other uses included steel manufacture,
oil refining, waste disposal, building material, and paper manufacture. 
 
 Salt.—Salt was recovered by solar evaporation of brine from springs
near Elm Fork of the Red River in Harmon County and from surface encrustations
on the Big Salt Plain of the Cimarron River in Woods County. Principal uses
were in stock feed and water softening; other uses included herbicides and
salinity control of oil well drilling fluid. 
 
 Sand and Gravel.—Over half *of the quantity and value of sand and
gravel produced in Oklahoma was supplied by operators in Johnston, Muskogee,
Oklahoma, Pontotoc, and Tulsa Counties. Despite an upsurge in the value of
building permits issued and the awarding of contracts by the Oklahoma State
Highway Department and the U.S. Army Corps of Engineers the output and value
of sand and gravel produced in 1967 was less than that of the previous year.

 
 Stone.—Thirty-seven counties reported output of stone; Comanche, Kiowa,
Murray, Sequoyah, and Tulsa Counties accounted for more than 45 percent of
the quantity and value. Sandstone production increased 98 percent over that
of 1966 as the State Highway Department and the U.S. Army Corps of Engineers
continued the use of sandstone for riprap. Output of limestone increased
as phases of construction requiring the use of limestone were reached. 
 
Table 14.—Sand and gravel sold or used by producers' 
(Thousand short tons and thousand dollars) 
Year — 
Commercial 
 
Government-and-contractor 
 
Total sand 
and gravel 
 
Quantity 
Value 
Quantity 
Value 
 — Quantity 
Value 
1963             
1964             
1965             
1966             
1967             
4,644 
5,032 
4,570 
4,329 
3,654 
$5,756 
6,031 
5,614 
6,151 
4,729 
776 
1,648 
648 
1,711 
886 
$360 
972 
409 
1,414 
552 
5,420 
6,680 
5,218 
6,040 
4,540 
$6,116 
7,003 
6,023 
7,565 
' 5,280