Is a diamond an element compound or mixture?
It’s also important to note that graphite is also pure carbon but the way the carbon atoms are linked to each other (the number of electrons shared between each atom is 2 vs. 1 for the diamond) gives it completely different properties. The carbon atoms form layers and the graphite is soft and slippery; which makes it a nice dry lubricant that is sometimes used in lock cylinders. It’s also opaque; unlike diamond.
