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| TABLE 1 | ||||||||||||
| SALIENT FELDSPAR AND NEPHELINE SYENITE STATISTICS1 | ||||||||||||
| 2010 | 2011 | 2012 | 2013 | 2014 | ||||||||
| United States: | ||||||||||||
| Production, feldspar:2 | ||||||||||||
| Quantitye, 3 | metric tons | 500,000 | 580,000 | 560,000 | 550,000 | 530,000 | ||||||
| Valuee | thousands | $37,800 | $45,400 | $36,500 | $40,100 | $34,800 | ||||||
| Exports, feldspar:4 | ||||||||||||
| Quantity | metric tons | 16,800 | 17,000 | 13,000 | 17,700 | 16,000 | ||||||
| Value5 | thousands | $2,280 | $3,020 | $4,390 | $5,310 | $5,880 | ||||||
| Imports for consumption:4 | ||||||||||||
| Feldspar: | ||||||||||||
| Quantity | metric tons | 2,050 | 1,710 | 1,640 | 4,310 | 7,910 | ||||||
| Value6 | thousands | $503 | $476 | $342 | $1,110 | $3,120 | ||||||
| Nepheline syenite: | ||||||||||||
| Quantity | metric tons | 368,000 | 394,000 | 386,000 | 491,000 | 503,000 | ||||||
| Value6 | thousands | $52,400 | $41,500 | $44,200 | $59,300 | $64,100 | ||||||
| Consumption, apparente, 3, 7 | metric tons | 850,000 | 960,000 | 930,000 | 1,000,000 | 1,000,000 | ||||||
| World, production8 | thousand metric tons | 21,900 | r | 21,000 | r | 20,700 | r | 21,900 | r | 22,900 | e | |
| eEstimated. rRevised. | ||||||||||||
| 1Data are rounded to no more than three significant digits. | ||||||||||||
| 2Includes hand-cobbed feldspar, flotation-concentrate feldspar, feldspar in feldspar-quartz mixtures, and aplite; | ||||||||||||
| predominantly in the production of ceramics and glass, may differ from sales in table 4. | ||||||||||||
| 3Rounded to two significant digits to avoid disclosing company proprietary data. | ||||||||||||
| 4Source: U.S. Census Bureau. | ||||||||||||
| 5Free alongside ship (f.a.s.) value. | ||||||||||||
| 6Customs value. | ||||||||||||
| 7Production plus imports minus exports. Includes feldspar and imported nepheline syenite. | ||||||||||||
| 8Feldspar only. | ||||||||||||
Source: United States Geological Survey Mineral Resources Program
See also: Mineral commodity prices
