Germanium: physical properties
Mechanical properties
Density properties
Density of solid: 5323 kg m‑3
Molar volume: 13.63 cm3
Elastic properties
Young's modulus: (no data) GPa
Rigidity modulus: (no data) GPa
Bulk modulus: (no data) GPa
Poisson's ratio: (no data) (no units)
Hardnesses
Mineral hardness: 6.0 (no units)
Brinell hardness: (no data) MN m-2
Vickers hardness: (no data) MN m-2
Electrical properties
Electrical resistivity: about 50000 × 10‑8 Ω m; or mΩ cm
Heat and conduction
Thermal conductivity: 60 W m‑1 K‑1
Coefficient of linear thermal expansion: 6 × 10‑6 K‑1
Optical properties
The image above is a virtual representation of germanium metal calculated by Patrick Callet using the complex diectric function of the element only.
Reflectivity: (no data) %
Refractive index: (no data) (no units)
Acoustic properties
Velocity of sound: 5400 m s‑1
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