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| TABLE 3 | ||||||||||||||||||||
| VALUE OF PRINCIPAL MINERAL PRODUCTS AND BYPRODUCTS OF SURFACE AND UNDERGROUND MINES IN THE UNITED STATES IN 20061 | ||||||||||||||||||||
| (Dollars per metric ton) | ||||||||||||||||||||
| Surface | Underground | All mines | ||||||||||||||||||
| Principal | Principal | Principal | ||||||||||||||||||
| mineral | mineral | mineral | ||||||||||||||||||
| Commodity | product | Byproduct | Total | product | Byproduct | Total | product | Byproduct | Total | |||||||||||
| Metal ore: | ||||||||||||||||||||
| Gold | 22.72 | W | 22.72 | 2 | W | W | W | 22.72 | 3 | W | 22.72 | 3 | ||||||||
| Iron | 16.49 | -- | 16.49 | -- | -- | -- | 16.49 | -- | 16.49 | |||||||||||
| Average, metals4 | 17.67 | W | 17.67 | 2 | 97.91 | 33.93 | 131.84 | 19.02 | 1.65 | 20.67 | ||||||||||
| Industrial minerals: | ||||||||||||||||||||
| Barite | 35.90 | -- | 35.90 | -- | -- | -- | 35.90 | -- | 35.90 | |||||||||||
| Clays | 43.06 | W | 43.06 | 2 | -- | -- | -- | 43.06 | W | 43.06 | 2 | |||||||||
| Feldspar5 | 30.48 | W | 30.48 | 2 | -- | -- | -- | 30.48 | W | 30.48 | 2 | |||||||||
| Gypsum | 9.08 | -- | 9.08 | W | -- | W | 9.08 | 3 | -- | 9.08 | 3 | |||||||||
| Phosphate rock | 8.30 | -- | 8.30 | -- | -- | -- | 8.30 | -- | 8.30 | |||||||||||
| Pumice6 | 28.85 | -- | 28.85 | -- | -- | -- | 28.85 | -- | 28.85 | |||||||||||
| Salt | 84.70 | -- | 84.70 | 20.51 | -- | 20.51 | 31.08 | -- | 31.08 | |||||||||||
| Sand and gravel: | ||||||||||||||||||||
| Construction | 6.46 | -- | 6.46 | -- | -- | -- | 6.46 | -- | 6.46 | |||||||||||
| Industrial | 25.42 | -- | 25.42 | W | -- | W | 25.42 | 3 | -- | 25.42 | 3 | |||||||||
| Soda ash | -- | -- | -- | 106.53 | -- | 106.53 | 106.53 | -- | 106.53 | |||||||||||
| Stone: | ||||||||||||||||||||
| Crushed | 8.05 | -- | 8.05 | 8.05 | -- | 8.05 | 8.05 | -- | 8.05 | |||||||||||
| Dimension | 198.63 | -- | 198.63 | W | -- | W | 198.63 | 3 | -- | 198.63 | 3 | |||||||||
| Talc7 | 30.57 | -- | 30.57 | -- | -- | -- | 30.57 | -- | 30.57 | |||||||||||
| Average, industrial minerals8 | 8.65 | 0.07 | 8.72 | 22.17 | -- | 22.17 | 9.17 | 0.07 | 9.24 | |||||||||||
| Average, industrial minerals, excluding | ||||||||||||||||||||
| sand and gravel and stone8 | 25.31 | 0.79 | 26.10 | 33.06 | -- | 33.06 | 23.53 | 0.16 | 23.69 | |||||||||||
| �� Average, metals and industrial minerals4, 8 | 10.69 | 0.25 | 10.94 | 30.58 | 3.76 | 34.34 | 11.36 | 0.37 | 11.73 | |||||||||||
| �� Average, metals and industrial minerals, | ||||||||||||||||||||
| ����� excluding sand and gravel and stone4, 8 | 18.95 | 0.93 | 19.88 | 50.34 | 7.11 | 57.45 | 20.95 | 1.32 | 22.27 | |||||||||||
| W Withheld to avoid disclosing company proprietary data; included in appropriate "Average."� -- Zero. | ||||||||||||||||||||
| 1Values calculated from unrounded data; may not add to totals shown because of independent rounding.�� | ||||||||||||||||||||
| 2Value of principal mineral product only. | ||||||||||||||||||||
| 3Value of products at surface operations only. | ||||||||||||||||||||
| 4Includes values of beryllium, copper, gold-silver, lead, lead-zinc, magnesium metal, molybdenum, platinum and palladium, silver, silver-copper, titanium, zinc, | ||||||||||||||||||||
| and metals indicated by symbol W. | ||||||||||||||||||||
| 5Includes aplite. | ||||||||||||||||||||
| 6Excludes volcanic cinder and scoria; included with "Crushed stone." | ||||||||||||||||||||
| 7Excludes pyrophyllite.� | ||||||||||||||||||||
| 8Includes values of abrasives, boron minerals, bromine, diatomite, garnet, greensand marl, iodine, iron oxide pigments, kyanite, lithium minerals, magnesite, | ||||||||||||||||||||
| magnesium compounds, mica, olivine, perlite, potash, tripoli, vermiculite, wollastonite, zeolites, and industrial minerals indicated by symbol W. | ||||||||||||||||||||
Source: United States Geological Survey Mineral Resources Program