to of a layer of graphite showing the hexagonal shapes.3-d graphiteModel showing multiple layers of graphiteProperties of graphite?It is a semiconductor. The alternating double bonds between the carbons conduct electricity.?It is very strong pressed but weak when a shear force is applied.–Shear force causes the layers to slide along each other. This makes the graphite slippery and a good lubricant.diamonds?Structure of diamonds.–All of the carbons are covalently bonded to each other in a tetrahedral arrangement. ?Properties of diamonds–They are strong in all directions. The tetrahedral arrangement makes a covalent bond in all dimensions.–They are not conductive.–Extremely high melting points.–Brittle.–High index of refraction. This “traps” light and makes them “sparkle”Model of a diamond