Diamond has the highest melting point among molecular solids. Diamond is composed of carbon atoms arranged in a rigid, three-dimensional lattice structure, forming a giant covalent network. The strong covalent bonds between the carbon atoms in diamond result in exceptional hardness and a high melting point. The melting point of diamond is approximately 3,550 degrees Celsius (6,442 degrees Fahrenheit) at atmospheric pressure. In contrast, other molecular solids, such as water ice or solid carbon dioxide (dry ice), have much lower melting points due to weaker intermolecular forces.