Phil in SF quoted The Book of Elsewhere by China Miéville
She said, We needed a tool. So I asked the gods.
There have always been …
The floor was a foul sastrugi of oil and dust, the clots of a drabber black that he knew was blood.
— The Book of Elsewhere by China Miéville, Keanu Reeves (Page 13)
new vocabulary: sastrugi
parallel wave-like ridges caused by winds on the surface of hard snow, especially in polar regions