1. Under pressure, the lowest energy structure switches between cubic and hexagonal close packing . 2. Close packing of spheres generates a dodecahedral tessellation with pentaprismic faces.3. The three most symmetric ways to do this are by orthobicupolar ) close packing . 4. In three dimensions, the face-centered cubic and hexagonal close packing are common crystal structures. 5. This can be rationalised in terms of close packing of spheres of different sizes. 6. The strike reached the business sector by closing packing industry houses surrounding the National Stockyards. 7. A typical good value for spherical grains is 0.64, as given by random close packing . 8. On raising temperature, the lowest free energy arrangement becomes cubic close packing and then liquid. 9. Spinel structures consist of multiple oxide structures that are cubic and have cubic close packing . 10. Structures are known which exceed the close packing density for radius ratios up to 0.659786.
