How unhealthy is it to have a piece of pencil lead (granite) stuck in you finger for over 2 years?

nope, no worries. I have a chuck of it stuck in the web of my skin between 2 fingers from dropping a pencil in 6th grade and trying to catch it. lol ya, it hurt ;) its been there ever since and I am 28 years old now and have had absolutely no problems!