A poorly performing internet connection can be caused by broadband router configuration errors, wireless interference, or any of several other technical issues with your home network. Use these tips to diagnose and fix the causes of your slow internet connection.
It's a non-metal. Graphite is a polymorph of the element carbon. diamond is another polymorph. The two share the same chemistry, carbon, but have very different structures and very different properties. Diamond is the hardest mineral known to man, Graphite is one of the softest.
Graphite, one of the softest materials known, is a form of carbon that is primarily used as a lubricant. Although it does occur naturally, most commercial graphite is produced by treating petroleum coke, a black tar residue remaining after the refinement of crude oil, in an oxygen-free oven.