582 
MINERALS YEARBOOK, 1967 
 
 
Table 4.—Employment and injury experience in the mineral industries

Year and industry 
Average 
 
 
men 
 
 
working 
 
 
daily 
Days 
Active 
Man- 
days 
worked 
(thou- 
sands) 
Man- 
hours 
worked 
(thou- 
sands) 
Number of injuries 
— Fatal Non- 
fatal 
Injury rates per million man-hours 
 
Fre- Severity quency 
1966: 
 
Peat                
 
Metal               
 Nonmetal - Sand and gravel        
 
Stone               
 
 Total              1967:" 
 
Peat                
 
Metal                 
 
Nonmetal            
 
Sand and gravel        
 
Stone                 
 
Total 1               
11 
1,668 
2,396 
2,378 
3,683 
191 
279 
258 
211 
267 
2 
465 
617 
501 
985 
17 
3,732 
4,992 
4,144 
8,106 
4 482 1242 882 126 
13.93 9,50825.24 3,14121.72 3,41815.79 2,411 
 
10,136 
254 
2,570 
20,991 
 10 386 
 18.86 4,043 
 
11 
1,565 
2,040 
2,175 
3,585 
188 
266 
252 
204 
251 
2 
417 
514 
444 
901 
17 
3,334 
4,224 
3,716 
7,420 
 39 1171 76 96 
11.70 38427.70 76620.72 2,08812.94 579 
 
9,375 
243 
2,278 
18,711 
1 328 
17.58 886 
'  Preliminary. 
1 Data may not add to totals shown because of independent rounding. 
 
 The Georgia—Pacific Corp. announced plans to build a gypsum wallboard
manufacturing plant on the east bank of the Hudson River at Buchanan, Westchester
County. Gypsum ore for the new plant will be imported from Nova Scotia. 
 Amax Specialty Metals, Inc., a sub-sidiary of American Metal Climax, Inc.,
expanded capacity for manufacture of zirconium seamless tubing by 50 percent
at its plant in Akron. 
 The major salt companies continued 
development work in underground operations and in well fields. 
 Exploratory and development work for oil and gas continued but at a decreased
rate compared with 1966 operations. 
 Zoning restrictions are reducing opportunities *for mineral extracting activities
in urban areas. For example, at Gates, Monroe County, Dolomite Products Corp.
was restricted to the use of only one of three parcels of land for quarrying.
In Westchester County, emery quarrying has been reduced because of zoning
litigation. 
 
REVIEW BY MINERAL COMMODITIES 
 
NONMETALS 
 
 Abrasives, Manufactured.—Aluminum oxide was fused and silicon carbide
was made in electric furnaces by two producers in Niagara County. Applications
of the finished products include abrasives, refractories, and nonabrasive
uses. 
 Metallic abrasives were produced by two operators in Erie County. Types
of output were chilled iron shot and grit, annealed iron shot and grit, and
cut wire shot. 
 
 Cenient.—Although shipments of all types of cement decreased 7 percent
in both quantity and value compared with those of 1966 cement ranked first
among the State's mineral industries in value. New York continued to rank
fifth in production among the cement producing States. The 
average price of portland cement, which accounted for 97 percent of the cement
value, dropped $0.02, to 2.61 per barrel. Shipments of masonry cement decreased,
and the average prices of masonry cement declined $0.15, to $2.21 per barrel.
Twelve plants were in operation of which 10 were in eastern and two in western
New York. Seven plants produced ' both portland and masonry cement, and five
produced portland cement exclusively. One plant discontinued production of
natural cement because of quality problems. The Lone Star Cement plant in
Columbia County closed in October. Eight counties reported cement production;
Greene County ranked first, followed by Albany, Ulster, and Columbia Counties.