User blog comment:Wildoneshelper/Guess the Object (Round 2)!!/@comment-101.176.82.79-20140613112630/@comment-4189499-20140613120854

No you don't. "Lead" pencils contain graphite at their cores, and graphite is an allotrope of carbon. It does not contain any lead. Lead concentrations in objects and substances we interact with on a regular basis have to be to be maintained at a very low level because lead is a heavy metal and can cause all kinds of health problems, especially affecting the nervous system. Also, lead is a metal, and this thing we're guessing is an ionic compound. Lead could potentially be one of the ions, but the thing cannot only be made of lead.