What is the origin of lead in pencils?
Lead has never been used in pencils. The 'lead' in pencils is graphite, a form of carbon, mixed with clay.
Modern pencils are the descendants of ancient writing instruments. In ancient Rome, scribes wrote on papyrus (an early form of paper) with a thin metal rod called a stylus, which left a light but readable mark. The ones made of lead worked best.
When pieces of rock from a mineral deposit in England were found to be good for marking sheep, the people presumed it was a lead deposit. Then the pieces were made into the first pencils. Chemists said the deposit was actually graphite, a form of carbon, but 'lead pencils' were so popular that the name is still used to this day.
the "lead" in pencils is actually graphite. No, it's not dangerous to ingest. No, the lead in pencils is not made from lead it is just called that. It is actually made of Granite which is not a dangerous rock. But if it happens to pucture you or cut you wash your wound with peroxide to kill the germs. Lead isn't used in pencils. Due to outdated chemistry, the graphite used in pencils was originally…
Yes, lead is a metal that is usually found in pencils, hence the name "Lead, pencil." The above statement is completely and utterly wrong, there has never and still is no lead at all in pencils, that's graphite. Also lead is a poor metal or malleable metal. Actually, pencils used to use lead, but they switched to graphite because people would chew on their pencils and give themselves lead poisoning.