The tiny window, fist-sized oval of obsidian glass, webs with jagged cracks that spider outward. Faint crimson light pulses through the fractures, seeping in thin threads that flicker and crawl across the rough, icy stone frame.
The object is immovable, securely bolted to its surroundings, or too large to be moved. It may only be destroyed or harvested.
This object or inventory will provide no environmental cover.