Constituent
Name
Ge
Official name
Germanium
Family
metallic solid
Class
pseudometal (semi-conductor)
Compound type
elemental solid
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Mole fraction
1.0
Chemical composition
Formula
$Ge$
Chemical formula
Ge
Elemental formula
Ge
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Ge$ Germanium element 1 1.0 1 constituent element main
Class
pseudometals (14)
Type
homovalent monolayer pseudometals (14.01)
Phase name
α-germanium
Phase type
crystalline
Crystal system
isometric (cubic)
Crystal class
hexoctahedral
Crystal class symbol
m-3m (Oh)
Crystal spacegroup
Fd-3m
Texture
polycrystalline
Molar mass
72.630 $g/mol$
Density
5.327 $g/cm^3$
Refringence type
isotropic