It melts at 3727 C. The stable form of carbon at room temperature is Graphite which has a hexagonal crystal structure. (Top diagram) Diamond is metastable at room temperature and has a diamond cubic ...

The lattice points are touching one another but not in the most efficient way. In other words, we are creating a lot of empty space between the atoms. In order to generate the simple cubic structure, ...

AMONG the numerous phases reported in lipid-water systems a few display a cubic symmetry; the structure of these phases has been the subject of several controversial reports. We show in this ...