Solid Germanium Polished Density Cube 10mm - 72.7g

Laser engraved. Highly polished. For true metal lovers! Size: 10x10x10mm Sample Purity: 99.9% Density: 72.6g/cm3 Weight: 72.7g Story Pure Germanium Cube unlocked! Each Germanium cube is machined with precision to 10x10x10mm (0.39in) for 1 cm3  and highly polished by hand for hours to reach a mirror finish.  Laser engraved! This is an heirloom piece that will last forever. Germanium is a chemical element with the symbol Ge and atomic number 32. Here are some interesting facts: Germanium is discovered by Clemens Winkler in 1886. A lustrous, hard-brittle, grayish-white metalloid in the carbon group, chemically similar to its group neighbors silicon and tin.  It is not thought to be an essential element for any living organism. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature. Germanium oxide has a high index of refraction and dispersion. This makes it suitable for use in wide-angle camera lenses and objective lenses for microscopes.  Pure germanium is a semiconductor with an appearance similar to elemental silicon. Historically, the first decade of semiconductor electronics was based entirely on germanium.  Presently, the major end uses are fibre-optic systems, infrared optics, solar cell applications, and light-emitting diodes (LEDs).  Polar Metals seeks to spice up your life with interesting and unusual metals in unexpected ways. So far, we have brought 25 Elements to you: Silver, Silicon, Germanium, Nickel, Chromium, Zinc,  Niobium, Tantalum, Hafnium, Rhenium, Thulium, Lutetium, Scandium, Ruthenium, Platinum, Palladium, Gold, Iridium, Titanium, Cobalt, Copper Aluminum, Carbon, Iron and Tungsten. *Note: Please wear gloves when handling.