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Template:POTD/2012-02-18

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Tantalum
A 1 cm3 cube, crystalline fragments, and a single crystal of tantalum, created by the floating zone process. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly resistant to corrosion. Its main use today is in tantalum capacitors in electronic equipment.Photo: Alchemist-hp