County 
 
of 
 
1966 
 
1967 
——-- 
Quantity Value 
 
 — Number Quantity Value Number 
 mines of mines 
 
 
 
 THE MINERAL INDUSTRY OF NORTH CAROLINATable 7.—Sand and gravel sold
or used by producers, by counties—Continued 
 
(Thousand short tons and thousand dollars) 
605 
 
 
 
 
Wake 
Washington 
Watauga 
Wayne 
Wilkes 
Wi1son~ 
Yadkin 
Yancey - 
Undistributed 1 
1 2 $2 1 6 $4 
1 7 2 1 16 4 
2 62 57 2 W W 
2 44 36 2 99 76 
1 22 20 1 7 11 
3 131 93 3 73 63 
1 4 5 1 2 
4 108 117 2 W W 
6 3,106 5,958 4 1,512 5,372 
 Total 128 11,601 11,132 120 10,014 9,962 
 
 
W Withheld to avoid disclosing individual company confidential data; included
with "Undistributed." ' Includes Ashe, Clay, Lenoir, and Madison (1966) Counties
indicated by symbol W. 
 
 
 
Table 8.—.Sand and gravel sold or used by producers, by uses 
(Thousand short tons and thousand dollars) 
Use 
 
1966 
 
 
1967 
 
 
 
Value 
 
 
Value 
 
 
Quantity 
— Total 
Average 
Quantity 
Total 
 —— Average 
 
 
 
per ton 
 
 
per ton 
Sand: 
 
 
 
 
 
 
Paving                         
Structural                       
Fill                            
3,363 
2,376 
996 
$2,300 
2 023 
616 
$0.68 
.85 
.62 
2,656 
2 563 
680 
$1,859 
2 088 
434 
$0.70 
.81 
.64 
Othersanda'                     
 Total -      
 
Gravel: 
428 
213 
.50 
548 
229 
.42 
 
7,163 
5,152 
.72 
6,447 
4,610 
.72 
 
 
 
 
 
 
 
Paving.                         
Structural                       
Miscellaneous                    
Othergravel'                    
 
Total                         
 
Totalsandandgravel             
2,643 
1,116 
W 
679 
2,865 
1,698 
W 
1,417 
1.08 
1.52 W 
2.09 
1,989 
901 
604 
73 
2,140 
1,652 
1,488 
72 
1.08 
1.83 
2.46 
.99 
 
4,438 
5,980 
1.35 
3,567 
5,352 
1.50 
 
11,601 
11,132 
.96 
10,014 
9,962 
.99 
W Withheld to avoid disclosing individual company confidential data; included
with "Other gravel." 
 1 railroad ballast, blast, filtration, and other sands. 
' Includes railroad ballast, fill, and miscellaneous (1966) gravel. 
 
 Stone.—Stone was the principal mineral commodity produced in the State,
accounting for over half the total value of mineral output. Of the total
stone production, crushed stone accounted for 99 percent of the tonnage and
92 percent of the value. Production of all types of crushed stone, except
limestone, showed substantial increases over that of 1966. Crushed granite
production increased 15 percent in tonnage and 16 percent in value; crushed
marble, 6 percent and 33 percent; crushed sandstone, 51 percent and 28 percent;
crushed traprock, 8 percent and 11 percent. Crushed 
limestone production decreased 10 percent in tonnage and 5 percent in value.
Dimension stone production also showed a substantial overall increase in
tonnage and value with dimension granite production a major part of the total,
increasing 20 percent in tonnage and 41 percent in value. Dimension slate
production was unchanged, and dimension marble, a smaller segment of the
industry, decreased 33 percent in tonnage and 23 percent in value. The overall
increase in the production of stone can be related to certain economic indicators
of