Price is per tumble
Cinnabar, also known as Cinnabarite, is a mercury sulfide mineral that usually crystallizes in the form of masses, but has been seen in the shape of tabular and rhombohedral crystals on a matrix. ... Occasionally on Cinnabar ore one can find tiny globs of natural mercury which settles into crevices of the stone.
This stone is considered on the toxic list of crystals and you need to wash your hands after use, not intended for children to play with.
