Germanium metal is a shiny silvery metalloid and a semiconductor. The latter makes Germanium metal an important material in electronics and solar technology. Germanium metal is a corrosion-resistant, very brittle and slightly toxic material, it doesn't have biological functions. Sometimes organic Germanium compounds are sold as obscure miracle cures. These have no medicinal benefit at all and are rather noxious.
Ultra pure 99.999% Germanium metal density cube for element collection.
The cube having dimensions 10x10x10mm represent the theoretical density of the Germanium metal 5.32g/cm^3
This cube for sale have a wrong numbered incision for the atomic number 33 instead of 32.