1 Railroad ballast, "Other (construction)," blast, and oil (hydrafrac) sand
combined to avoid disclosing individual company confidential data. 
 2 "Other (construction)," blast, and oil (hydrafrac) sand combined to avoid
disclosing individual company confidential data. 
 Railroad ballast and "Other" gravel combined to avoid disclosing individual
company confidential data. 
 THE MINERAL INDUSTRY OF ARIZONA 111 
 
 
Table 12.—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: 
Construction: 
    Building 2,849 $3,382 2,663 $2,997 
    Paving 439 573 560 665 
    Railroad ballast   1 102 1 287 
    Fill 234 200 455 175 
    Other 2 24 2 208 (1) (1) 
 Industrial: 
    Blast (2) (2) (1) (1) 
    Engine 1 8 1 9 
 Oil (hydrafrac) (2) (2) (1) (1) 
 Total 3,547 4,371 3,781 4,133 
 
Gravel: 
Construction: 
 Building 2,213 2,945 1,775 2,569 
 Paving 1,468 1,784 1,892 2,075 
 Railroad ballast   3 17 3 34 
 Fill 722 554 737 421 
 Other   (3) (3) 
 Miscellaneous 74 83 30 49 
 Total 4,477 5,366 4,451 5,148 
 Total sand and gravel — 8,024 9,737 8,232 9,281 
 
Government-and-contractor operations: 
Sand: 
 Paving 1,380 1,373 1,371 1,320 
 Fill 211 182 355 283 
 Total 1,591 1,555 1,726 1,603 
 
Gravel: 
 Building 75 62 
 Paving 8,845. 8,912 6,539 6,071 
 Fill 195 182 83 62 
 Total 9,115 9,156    6,622 6,133 
 Total sand and gravel 10,706 10,7118,348 7,736 
 
All operations: 
 Sand 5,138 5,926 5,507 5,736 
 Gravel 13,592 14,522 11,073 11,281 
 Total 18,730 20,448 16,580 17,017