User:Ballchef
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Tungsten rods with evaporated crystals, partially oxidized with colorful tarnish, as well as a 1 cm3 tungsten cube for comparison. Tungsten is a hard, rare metal under standard conditions when uncombined and is found naturally on Earth only in chemical compounds. Its chemical symbol is W, which represents its alternative name, "wolfram". Photo: Alchemist-hp |
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