Zirconium
Zirconium is a chemical element with symbol Zr and atomic number 40. The name zirconium is taken from the name of the mineral zircon, the most important source of zirconium.
Atomic Weight: 88.90584 Density: 4.472 g/cm3 Melting Point: 1526 °C Boiling Point: 3345 °C