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| TABLE 3 | |||||||||||||||||||||
| VALUE OF PRINCIPAL MINERAL PRODUCTS AND BYPRODUCTS OF SURFACE AND UNDERGROUND MINES IN THE UNITED STATES IN 20071 | |||||||||||||||||||||
| (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 | 24.07 | W | 24.07 | 2 | W | W | W | 24.07 | 3 | W | 24.07 | 3 | |||||||||
| Iron | 59.64 | 4 | -- | 59.64 | 4 | -- | -- | -- | 59.64 | 4 | -- | 59.64 | 4 | ||||||||
| Average, metals5 | 17.48 | W | 17.48 | 2 | 106.12 | 26.79 | 132.91 | 19.20 | 2.25 | 21.45 | |||||||||||
| Industrial minerals: | |||||||||||||||||||||
| Clays | 47.79 | -- | 47.79 | 2 | -- | -- | -- | 47.79 | 3 | -- | 47.79 | 3 | |||||||||
| Feldspar6 | 59.65 | W | 59.65 | 2 | -- | -- | -- | 59.65 | W | 59.65 | 2 | ||||||||||
| Gypsum | 8.18 | -- | 8.18 | W | -- | W | 8.18 | 3 | -- | 8.18 | 3 | ||||||||||
| Phosphate rock | 12.01 | -- | 12.01 | -- | -- | -- | 12.01 | -- | 12.01 | ||||||||||||
| Pumice7 | 22.85 | -- | 22.85 | -- | -- | -- | 22.85 | -- | 22.85 | ||||||||||||
| Salt | 86.03 | -- | 86.03 | 19.80 | -- | 19.80 | 30.05 | -- | 30.05 | ||||||||||||
| Sand and gravel: | |||||||||||||||||||||
| Construction | 7.01 | -- | 7.01 | -- | -- | -- | 7.01 | -- | 7.01 | ||||||||||||
| Industrial | 28.60 | -- | 28.60 | W | -- | W | 28.60 | 3 | -- | 28.60 | 3 | ||||||||||
| Soda ash | -- | -- | -- | 120.65 | -- | 120.7 | 120.65 | -- | 120.65 | ||||||||||||
| Stone: | |||||||||||||||||||||
| Crushed | 8.66 | -- | 8.66 | 8.66 | -- | 8.66 | 8.66 | -- | 8.66 | ||||||||||||
| Dimension | 197.37 | -- | 197.37 | W | -- | W | 197.37 | 3 | -- | 197.37 | 3 | ||||||||||
| Talc8 | 31.76 | -- | 31.76 | -- | -- | -- | 31.76 | -- | 31.76 | ||||||||||||
| Average, industrial minerals9 | 9.19 | 0.03 | 9.22 | 23.70 | -- | 23.70 | 9.81 | 0.26 | 9.84 | ||||||||||||
| Average, industrial minerals, excluding | |||||||||||||||||||||
| sand and gravel and stone9 | 22.59 | 0.29 | 22.88 | 38.75 | -- | 38.75 | 26.62 | 0.22 | 26.84 | ||||||||||||
| �� Average, metals and industrial minerals5, 9 | 11.28 | 0.46 | 11.74 | 34.41 | 3.48 | 37.90 | 12.13 | 0.58 | 12.71 | ||||||||||||
| �� Average, metals and industrial minerals, | |||||||||||||||||||||
| ����� excluding sand and gravel and stone5, 9 | 18.32 | 1.52 | 19.84 | 54.44 | 6.24 | 60.68 | 20.72 | 1.84 | 22.55 | ||||||||||||
| 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. | |||||||||||||||||||||
| 4Average value at mines only. | |||||||||||||||||||||
| 5Includes 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. | |||||||||||||||||||||
| 6Includes aplite. | |||||||||||||||||||||
| 7Excludes volcanic cinder and scoria; included with "Crushed stone." | |||||||||||||||||||||
| 8Excludes pyrophyllite.� | |||||||||||||||||||||
| 9Includes values of abrasives, barite, 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