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Template:POTD/2012-02-01

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Niobium crystals and cube
High-purity niobium crystals, with a 1 cm3 cube of anodized niobium for comparison. Niobium is a soft, grey, ductile transition metal named after Niobe from Greek mythology. Niobium is typically used in steel alloys; only a tiny amount (0.1%) is required to improve the strength of the steel.Photo: Alchemist-hp