Properties+and+Uses+of+Carbon

Pure diamond is used for its beauty and its strength. It is a jewelers best friend, and can cut through anything, being the hardest substance known to man. Diamonds are poor conductors of electricity, unlike carbon in graphite form. Graphite is a very good conductor of heat and energy/electricity, and will be mixed with clay for in pencils and as a lubricant in paints. Below left: a diamond necklace, Below right: a graphite pencil