PDF-VANADIUM(Data in metric tons of vanadium content unless otherwise note

176 Domestic Production and UseSeven US firms that compose most of the domestic vanadium industry produced ferrovanadium vanadium pentoxide vanadium metal and vanadiumbearing chemicals or speci. Silver was produced at 3 silver mines and as a byproduct or coproduct from 39 domestic base and precious metal mines Alaska continued as the countrys leading silver producing State followed by Nevada There were 14 US refiners that indicated producti 6 billion was produced by 120 companies from 177 operations in 31 State s Leading States were in order of tonnage produced Wisconsin Illinois Texas Minnesota Oklahoma Arkansas Michigan and Iowa Combined production from these States accounted for 74 o Based on published market prices the value of primary metal production was 407 billion Aluminum consumption was centered in the East Central United States Transportation accounted for an estimated 36 of domestic consumption the remainder was used in 94 Domestic Production and Use The only commercially active lithium mine in the United States was a brine operation in Nevada. The mine’s production capacity was expanded in 2012, and a new lith 94 Domestic Production and Use The only active lithium carbonate plant in the United States was a brine operation in Nevada. Two companies produced a large array of downstream lithium compounds in th 108 Domestic Production and UseThe United States had only one active nickel mine in 2013a greenfield, underground operation in Michigan. Contractors completed the main decline tunnel of the new chal 160 Domestic Production and UseNo significant U.S. tantalum mine production has been reported since 1959. Domestic tantalum resources are of low grade, some mineralogically complex, and most are not Domestic Production and UseA tungsten mine in California produced concentrates in 2013. Approximately eight companies in the United States processed tungsten concentrates, ammonium paratungstate, tun 186 Domestic Production and UseThe value of zinc mined in 2013, based on zinc contained in concentrate, was about $1.60 billion. Zinc was mined in 4 States at 14 mines operated by 4 companies. Two f 48 Domestic Production and Use Domestic mine production of copper in 2010 declined by about 5% to 1.12 million tons but its value rose to about $8.4billion. The principal mining States, in descending 46 Domestic Production and Use Significant U.S. cobaltmine production has not been reported since 1971, and production of refined cobalt from imported nickelcoppercobalt matteceased in 1985. U.S. sup 70 Domestic Production and UseIn 2013, domestic production of crude gypsum was estimated to be 16.3 million tons with a value of about $130 million. The leading crude gypsumproducing States were, in 48 Domestic Production and UseIn 2014, U.S. mine production of copper increased by 10% to about 1.37 million tons, and was valued at about $9.7 billion. Arizona, Utah, New Mexico, Nevada, and Montan 170 Domestic Production and UseTitanium sponge metal was produced by three operations in Nevada and Utah. Titanium ingot was produced by 10 operations in 8 States and consumed by numerous firms to p