Crait was a small, desolate, and uninhabited planet located in a remote star system of the same name, in grid square N-17 on the Standard Galactic Grid. The planet was rich in minerals[10] and orbited one star. A thick crust of white-colored salt covered nearly the entire planet surface, with red-colored rhodochrosite base beneath. Though dominated by large salt flats, the planet also featured mountains, canyons, and deeply sunken waterways—which were possibly home to aquatic creatures. Among these subterranean water reserves was a “briny” ocean.

The planet had an atmosphere breathable to oxygen-breathers, such as humans, which was fed by the dissolution of underground reserves of solid oxygen and nitrogen-suspending crystals. The white salt-covered surface reflected the sunlight, which would be blinding at midday. The sodium-containing salt also made the planet surface slippery, hard to travel; with gusts of wind sending up flumes of white salt. The planet was also inhabited by Vulptices, fox-like creatures with white, crystalline fur that lived within the burrows and tunnels beneath the surface of Crait. Occasionally, large crystalstorms would break out.