Germanium's atomic number 32, which atom has a radius of 122.5 pm. Under standard conditions germanium is a brittle, silvery-white, semi-metallic element. This form constitutes an allotrope technically known as α-germanium, which has a metallic luster and a diamond cubic crystal structure, the same as diamond.
Storage conditions germanium powder
Germanium powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.

Function:
1. It could be used as colorant,  x-ray detector, semiconductor,  prism, infrared night vision scope,  rectifer,  color film, PET resin, microscope lenses, polyester fiber.
2. It's also widely used in optics, isotops, electronics, catalysts for polymerization, PET bottles in Japan, polymerization catalysts, gas chromatography columns, metal alloys, sterling silver alloys, airport security, gamma spectroscopy, dietary supplements, pharmaceutical development, health hazard.
3. It's also used in germanium mattress, diode germanium, germanium fuzz, transistors, organic powder, human health, healthy energy watch, germanium soap, organic products, Ge bracelet, germanium titanium sports energy, bio germanium magnetic necklace, germanium custom silicone bracelet.