Human: Generate for a dreary desert wilderness scene with spires, cracks, cliffs, and obsidian. Assistant: 
Hardened by hundreds of years under the intense heat of the sun, the vast expanse of silt is marred by an endless network of salt-encrusted cracks that form a kaleidoscope of geometric shapes. Jagged cliffs ring the dry lake bed and a deep crater lies to the north, though passage is obstructed by numerous spires of obsidian that jut high into the air.