584 MINERALS YEARBOOK, 1967 
 
in portland cement. Calcining was done at seven plants located in Bronx,
Erie (2), Genesee, Monroe, Richmond, and Rockland Counties. Uses for calcined
gypsum other than in building materials were in manufacturing plate glass,
pottery, planters, industrial molding, and art and coating plasters. 
 The Akron Mine, Bestwall Gypsum 
Division, Georgia-Pacific Corp., Akron, 
Erie County, received a citation from the 
National Safety Competition for having 
had no disabling work injuries in the 
Underground-Nonmetal Group during 
1967. 
 
 
Table 5.—Crude gypsum production 
(Thousand short tons and thousand dollars) 
 
Year 
Active 
mines 
Quan- 
tity 
Value 
1963               
5 
647 
$3,339 
1964               
5 
653 
3,321 
1965               
5 
662 
3,511 
1966               
1967               
5 
5 
559 
570 
2,998 
3,118 
 Lime.—Production of lime in Onondaga, Niagara, and Erie Counties,
increased 4 percent over that of 1966 and the value increased 7 percent.
Bethlehem Steel Corp. operated its lime plant in Erie County to supply quick-lime
for its basic oxygen furnaces at Lackawanna. All other quicklime output was
captive production by chemical companies. Quicklime accounted for about 90
percent of the lime output. Most hydrated lime was used for chemical processing;
some was used for construction. Among the lime-producing States New York
ranked sixth in quantity and seventh in value. 
 
 Perlite.—Crude perlite mined in Western States was expanded at seven
plants, three in Erie County and one each in Bronx, Genesee, Richmond, and
Rockland Counties. The most important use was in acoustical building plaster.
Other uses included filler material, loose fill insulation, soil conditioner,
lightweight concrete aggregate, and filtering. 
 
 Salt—Production of salt increased 7 percent in quantity over that
of 1966 and the value increased 15 percent. The greater relative increase
in value was mainly because of a $0.78 per ton increase in value 
for rock salt. The value per ton decreased for evaporated salt but increased
for brine salt. The State ranked fourth in production and third in value
among the salt-producing States. There was greater production of evaporated
and rock salt, but there was slightly less output of brine salt than in 1966.
The most important uses for evaporated salt, based on tonnage, was for manufacturing
chlorine and other chemicals. An almost equivalent use was for food processing
and seasoning. The principal use for rock salt was for highway ice control
in the Northeastern States. A large quantity of rock salt. was also used
in the manufacture of chemicals. Salt In brine was used mainly for the manufacture
of soda ash; some salt in brine was used for the manufacture of chlorine
and other chemicals. Salt for chemical manufacture was used mainly in New
York. Rock salt was mined in Livingston and Tompkins Counties, and salt was
produced from wells in Onondaga, Schuyler, and Wyoming Counties. 
 
 
Table 6.—Salt sold or used by producers 
(Thousand short tons and thousand dollars) 
 
Year 
Quantity 
Value 
1963                     
1964                     
1965                     
4,782 
4,816 
5,002 
$34,228 
34,216 
35,771 
1966                     
1967                     
4,980 
5,320 
36,203 
41,568 
Sand and Gravel.—Production of sand 
and gravel increased 4 percent over that of 1966. The average price decreased
by 
$0.01 to $1.02 per ton. Commercial sand output decreased 1.1 million tons.
Government-and-contractor operations production increased by 200,000 tons.
However, both commercial and government gravel outputs increased 2.5 million
tons chiefly for increased paving and filling demands. There were 289 commercial
operations and many other locations operated by construction companies working
on various Federal, State, county, and local government contracts. Three
operations had production in excess of 1 million tons and nine exceeded 500,000
tons. Production from these nine large operators comprised 29 percent of
the commercial output. There were 123 small pits in operation, each producing
less than 25,000 tons, which accounted for 4 percent of the total commercial
output.