human
Please write a detailed description of a gloomy scene inside a barn with basalt, chalcedony, floor, and stone panels.
assistant
The darkness here is almost tangible, muffling sound and sight. No breath of wind disturbs the heaviness. The floor is clean-swept, and a pair of square, stone panels, one of basalt and the other of chalcedony, are mounted on the rough boards of the barn's wall.