Gives new meaning to the expression "black as Cohl."
Or black as kohl....
Kohl is an ancient eye cosmetic, traditionally made by grinding stibnite for similar purposes to charcoal used in mascara. It is widely used in the Middle East, North Africa, the Mediterranean, South Asia, and the Horn of Africa as eyeliner to contour and/or darken the eyelids and as mascara for the eyelashes. It is worn mostly by women, but also by some men and childre