40 Zr Zirconium
Transition metal, mass: 91.224 u, 4 stable isotopes (90, 91, 92, 94), abundance rank (earth/space): 20/34Click image to magnify. Two pieces of ultrapure zirconium, together 2.5 grams. Original size in cm: 1 each
Zirconium is a hard, silvery grey metal. It is quite reactive, but forms a protective oxide layer in air, which makes it corrosion-resistant. Above all, it is used for special alloys. From cubic zirconia, ZrO2, artificial gemstones can be made, which look very similar to diamonds.
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Page last changed on February 14. 2010
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