| | Crystal | Lattice | ,°C (melting point) | Thermal expansion coefficients 10−6 deg−1 | , eV | | Type | , Å |
| | Cubic (fluorite) | 5.141 ()
5.157 ()
5.198 () | 2800 | 11.4 (15–1000°C) | | | GaAs | Cubic (sphalerite) | 5.65 | 1283 | 5.4 | 1.43 | | GaP | Cubic (sphalerite) | 5.445 | 1467 | 4.7 | 2.26 | | GaN | Hexagonal (wurtzite) | ;
| 1700 | 5.6; 7.8 | 3.4 | | GaN | Cubic (sphalerite) | 4.52 | 1700 | 3.9 | 3.2 | | InN | Hexagonal (wurtzite) |
| 1200 | 12.7 | 0.7 | | InN | Cubic (sphalerite) | 4.98 | 1200 | 4.4 | 0.67 |
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