View Nickel Picture Element Background. The periodic table of elements. American elements is a chemical supplier with a wonderfully refreshing attitude towards element collectors:
It is signed on the back by howard.
These are spheres of pure nickel metal. If you do, please let me know. 2 x 2 nickel is a quite inert metal, which often is used for plating, but nickel is ferromagnetic and, together with iron, forms the inner core of the earth, which is a big magnet. This is a main category requiring frequent diffusion and maybe maintenance.