pub const GAN_DENSITY_G_CM3: f64 = 6.1;Expand description
Measured (not X-ray) density of wurtzite GaN, 6.1 g/cm³, temperature
not stated.
R. Juza and H. Hahn, “Über die Kristallstrukturen von Cu3N, GaN und InN”,
Z. Anorg. Allg. Chem. 239, 282 (1938), doi:10.1002/zaac.19382390307
(closed access, not opened), as recorded in the Crystallography Open
Database entry 1010168 (public domain): _exptl_crystal_density_meas 6.1,
with that paper’s cell a = 3.180(4) Å, c = 5.166(5) Å. Printed to two
figures, so half a unit in the last place is 8.2e-3 relative; this is the
tolerance of the number-density test against GAN_LATTICE_CONSTANTS.