to form tabular bodies as Lac Tio, dikelike bodies at the Puizzalen area, and lensoid masses at the Mills locale (Rose, 1969).Small amounts of vanadium, generally 0. 1 or 0. 2%, are found in boththe Lake Sanford and Allard Lake deposits. Vanadium is common in manyiron and titanium ores, and appears especially in ores of magmatic affiation. Vanadium is seldom recovered from these ores, but they may be asource of large amounts in the future. During World War II, vanadium wasrecovered from slag as a by-product of the German iron-and-steel industry(Fischer, 1946). According to Vaasjoki (1947), vanadium is concentratedwith magnetite rather than ilmenite, probably because vanadium and ferriciron ions are nearly the same size. However, Hutton (1945) stated that thedifferences in ionic size between V + 3 or Fe + 3 and Ti + 4 are not large enoughto cause such a selective concentration of vanadium. He favored the hypothesis that the vanadium becomes concentrated in residual magmatic liquids after ilmenite crystallizes and consequently is more available duringthe later growth of magnetite. It is presently being extracted from titanianmagnetites of the Bushveld Complex and has been reported in amounts upto 2-3% (Dietrich, 1985) in layered magnetites of the Stillwater Complex,Montana.
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