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History
Carnotite
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Carnotite is a potassium uranium vanadate radioactive mineral with chemical formula K2(UO2)2(VO4)2ยท3H2O. The water content can vary and small amounts of calcium, barium, magnesium, iron, and sodium are often present.
Carnotite in fossilized wood from St. George, Utah
Carnotite in fossilized wood from St. George, Utah
Carnotite from the Happy Jack Mine, Utah
Carnotite from the Happy Jack Mine, Utah
Vanadium
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Vanadium is a chemical element; it has symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation.
Vanadium
Vanadium
The Model T used vanadium steel in its chassis.
The Model T used vanadium steel in its chassis.
Polycrystalline high-purity (99.95%) vanadium cuboids, ebeam remelted and macro-etched
Polycrystalline high-purity (99.95%) vanadium cuboids, ebeam remelted and macro-etched
From left: [V(H2O)6]2+ (lilac), [V(H2O)6]3+ (green), [VO(H2O)5]2+ (blue) and [VO(H2O)5]3+ (yellow)
From left: [V(H2O)6]2+ (lilac), [V(H2O)6]3+ (green), [VO(H2O)5]2+ (blue) and [VO(H2O)5]3+ (yellow)