Solid Chromium Polished Density Cube 10mm - 7.2g

Elemental metallic 1 cm elemental cubes These highly polished cubes are great educational tools  Each cube is highly polished by hand and laser engraved with its periodic info. Size: 10x10x10mm Weight: 7.19g Sample Purity: 99.7% Surface: Mirror Finish Each Chromium cube is solid and of high purity of 99.7%, highly polished by hand for many hours to reach a mirror finish, and laser engraved with its periodic info. This is an heirloom piece that will last forever. Chromium is a chemical element with the symbol Cr and atomic number 24. Here are some interesting facts: It was discovered by Louis Nicolas Vauquelin (1794, 1797). It is a steely-grey, lustrous, hard, and brittle transition metal. It is the main additive in stainless steel, to which it adds anti-corrosive properties. It is also highly valued as a metal that is able to be highly polished while resisting tarnishing. Polished chromium reflects almost 70% of the visible spectrum, with almost 90% of infrared light being reflect