23 10 45 25 
 16 9                  
 456 873 510 
 1 7 4 
 457 880 514 
 W Withheld to avoid disclosing individual company confidential data; included
with "Qther." 
 1 Includes abrasives (1966), pottery, porcelain, and tile (1967), blast,
engine, fire or furnace, glass, molding, and other industrial sand. 
 THE MINERAL INDUSTRY OF INDIANA 301 
 
 
Table 6.—-Sand and gravel sold or used by producers, by classes of
operations and uses (Thousand short tons and thousand dollars) 
 1966 1967 
Class of operation and use 
 Quantity Value Quantity Value 
 
 
Commercial operations: 
Sand: 
 Building 4,654 $4,005 4,679 $4,180 
 Paving 4,127 3,454 4,057 3,485 
 Fill 2,099 1,446 2,052 1,157 
 Railroadballast W W 14 14 
 Industrial' 672 1,689 639 2,134 
 Other 81 52 68 52 
 Total 11,63310,646 11,509 10,972 
 
Gravel: 
 Building 2,947 3,480 3,263 3,983 
 Paving 7,091 7,191 8,154 8,597 
 Railroad ballast W W 19 18 
 Fill 1,910 1,201 2,388 1,469 
 Other 584 548 7 10 
 Total 12,53212,420 13,831 14,077 
 Total sand and gravel 24,165 23,066 25,340 25,049 
 
Government-and-contractor operations: 
Sand: 
Paving 
Other 
 Total — 39 19 4525 
 
Gravel: 
 Paving 785 
 Other 3 
 Total 788 
 Total sand and gravel 827 476 925 539 
 
All operations: 
 Sand 11,672 10,665 11,554 10,997 
 Gravel 13,320 12,877 14,711 14,591 
 Total 24,992 23,542 26,265 25,588