Roger Weller, geology instructor
[email protected]
copyright
2010-R.Weller
graphite-1
Graphite is a pure element, Carbon (C)
Graphite is one of the two naturally
forms of carbon; the other variety is diamond.
Graphite is quite soft and is also used as an expensive lubricant.
graphite
Photo is copyright free only for non-commercial
educational uses.
Just credit photo to R.Weller/Cochise College.