Salient U.S. Silica Statistics

TABLE 1
SALIENT U.S. SILICA STATISTICS¹

(Thousand metric tons and thousand dollars unless otherwise specified)

	2011	2012	2013	2014		2015
Industrial sand and gravel:²
Sold or used:
Quantity:
Sand	43,400	50,300	61,900	109,000	^r	102,000
Gravel	348	345	276	744	^r	1,150
Total	43,800	50,600	62,100	110,000		103,000
Value:
Sand	1,990,000	2,670,000	3,460,000	8,230,000	^r	4,830,000
Gravel	14,400	8,880	9,350	7,540	^r	19,200
Total	2,000,000	2,670,000	3,470,000	8,240,000	^r	4,850,000
Exports:
Quantity	4,330	4,360	2,960	4,450		3,890
Value	371,000	327,000	352,000	461,000		384,000
Imports for consumption:
Quantity	316	306	160	244		290
Value	87,900	36,600	11,700	20,400		20,200
Processed tripoli:³
Quantity----------- metric tons	73,700	120,000	110,000	93,100		70,500
Value	16,500	18,900	17,600	19,500		19,400
Special silica stone:
Crude production:
Quantity----------- metric tons	W	156	146	146	^e	205
Value	W	39	36	36	^e	49
Sold or used:
Quantity----------- metric tons	W	500	465	465	^e	465	^e
Value	W	823	765	765	^e	765	^e
^eEstimated. ^rRevised. W Withheld to avoid disclosing company proprietary data.-
¹Data are rounded to no more than three significant digits; may not add to totals shown.
²Excludes Puerto Rico.
³Includes amorphous silica and Pennsylvania rottenstone.