How to use "mercury" in a sentence

A single mercury-vapor pole lamp at the entrance shed fuzzy purple light over the first third of the parking lot

Tina stopped when they reached the purple light under the mercury-vapor lamp

She stayed a moment longer, staring back into the gloom, where the purple mercury-vapor light did not reach.

They put their heads down and scurried past the front of the diner, around the side, through the purple light under the single mercury-vapor lamp, and into the deep shadows behind the building.