Phosphate Rock.—Tennessee rankedthird in the production of phosphate
rock730 
MINERALS YEARBOOK, 1967 
 
 
Table 5.—Ball clay sold or used by producers, by uses 
Use 
 
1966 
 
 
1967 
 
 
Short 
tons 
Value 
Total Average per ton 
 
Short 
sons 
Value 
Total Average per ton 
 
Whiteware, etc                
Floorandwalltile             
Otheruses'                  
223,421 
66,600 
95,220 
$3,008,173 
664,092 
873,205 
$13.46 
 9.97 
 9.17 
206,992 
64,200 
101,031 
$2,811,422 
 846,266 
 961,624 
$13.58 
13.18 
 9.52 
Total                  
385,241 
4,545,470 
11.80 
372,223 
4,619,312 
12.41 
 1 Includes art pottery, firebrick and block, kiln furniture, other refractories,
heavy clay products, enameling, fillers, and other uses. 
 
of the national total. Production increased silghtly over that of 1966. Two
companies operated mines in Henry County. Southern Clay Co., Inc., which
purchased Tennessee Absorbent Clay Co., announced plans for a $500,000 expansion
at the Paris plant; the addition of three new dryers will more than double
plant capacity. 
 Miscellaneous clay production increased 24 percent, a new record. Ten companies
mined clay in nine counties for use in lightweight aggregate, brick, cement,
and heavy clay products. General Shale Products Corp., the State's leading
producer, completed construction of a new facility at Knoxville, the first
fully automatic kiln in the United States. The new kiln will produce 90,000
bricks in an 8-hour shift—100 million bricks per year. 
 
 Graphite.—Great Lakes Carbon Co. announced plans for a $13.5 million
expansion of its graphite electrode plant at Dyersburg, Tenn. 
 
 Lime.—The production of quicklime and hydrated lime for building and
chemical use increased 11 percent in 1967. Lime produced at the Knoxville
plants of Williams Lime Manufacturing Co. and Foote Mineral Co. was shipped
as follows: 
North Carolina (43 percent), Tennessee (41 percent), South Carolina (11 percent),
and other States (5 percent). 
 
 Perlite.—Chemrock Corp. expanded perlite for aggregate, filler, and
filter aids at Nashville. Production decreased 1 percent from that of 1966.

 
with 8 percent of the Nation's total. However, State production decreased
10 percent from that of 1966. Six companies mined and processed phosphate
rock in 
*six counties in the central part of the State. The leading producers were
Hooker Chemical Corp. and Monsanto Co. 
 
 Pyrite.—The State continued to lead the Nation in output of pyrite,
establishing a new record high. Tennessee Copper Co. recovered pyrite concentrate
from sulfide ore mined in Polk County in the southeastern part of the State.

 
 Sand and Gravel.—Sand and gravel output decreased 8 percent from that
of 1966, the record year. Most of the sand and gravel produced was used for
construction purposes and the remainder for industrial uses. Production was
by 43 companies at 47 operations in 31 counties, with 22 commercial operations,
led by Ingram Materials, Inc., each producing over 100,000 tons. Transportation
was by truck (80 percent), rail (17 percent), and waterway (3 percent). 
 
 Stonc.—Tennessee ranked third in the Nation in production of dimension
marble, and sixth in dimension sandstone. 
 Quarrying and crushing of limestone increased 1 percent over that of 1966,
establishing a new industry record. Crushed limestone was utilized in concrete
and roads (81 percent), agricultural stone (8 percent), cement (7 percent),
stone sand (1 percent), and other uses (3 percent). Crushed limestone was
produced by 76 operators at 122 locations. Lambert Brothers Division of Vulcan
Materials Co. announced plans for constructing a $1 million, 300-ton-per-hour
limestone quarry and crushing plant in Goodletts