Zirconium is a chemical element with the symbol Zr and atomic number 40. The name zirconium is taken from the name of the mineral zircon. The word is related to Persian zargun (zircon; zar-gun, "gold-like" or "as gold", the most important source of zirconium. It is a lustrous, grey-white, strong transition metal that closely resembles hafnium and, to a lesser extent, titanium.
http://www.sscmaterials.com/no....n-ferrous-metals/zir
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