There are the pains in the stomach, the colic, and then on the gums is that characteristic line of plumbic sulphide, the distinctive mark produced by lead.    From Wordnik.com.  [The War Terror] Reference

A resinated ferrous salt, a resin compound of plumbic ferrocyanide, and a resin compound of ferrocyanide of manganese in combination with a salt of molybdenum and a resin compound of zinc sulphide.    From Wordnik.com.  [Forty Centuries of Ink] Reference