the most obvious reason being that diamonds cost a lot more than pencil lead. another reaon they are different is that diamonds are the hardest known substance to man. pencil lead is not hard at all.
Suppose you wanted to say pencil. It might have different meanings but "creion" or "pensula" are common.
crayon
7.5 inches
plastic.
The pencial
pad and pencial
pencil
A "pencil" is a tube of wood containing a core of graphite. It is often used for writing or drawing.
Am led to believe it is zirconium
No, a rhombus is thinner than a diamond.
diamond
no. you cant go to another region on diamond