velocity of sound: 13000 m s-1

Elastic properties

Young's modulus: 287 GPa

Rigidity modulus: 132 GPa

Bulk modulus: 130 GPa

Poisson's ratio: 0.032 (no units)

Hardnesses

Mineral hardness: 5.5 (no units)

Brinell hardness: 600 MN m-2

Vickers hardness: 1670 MN m-2

Electrical properties

Electrical resistivity: 3.8 10-8 Ω m; or mΩ cm

Optical properties

Reflectivity: no data %
Refractive index: no data (no units)

frequencies; isotopes; magnetogyric ratios; quadrupole moments; receptivities; and relative sensitivities

Beryllium: orbital properties