It is a white solid with a melting point of 110 °C, and can be produced by reacting germanium tetrafluoride with germanium powder at 150–300 °C.

[2] Germanium difluoride forms orthorhombic crystals with a space group P212121 (No.

Its crystal structure is characterized by strong polymeric chains composed by GeF3 pyramids.

One of the fluorine atom in the pyramid is shared by two neighboring chains, providing a weak link between them.

[3] Another, less common crystal form of GeF2 has tetragonal symmetry with a space group P41212 (No.