| It is nonconvex with 60 golden rhombic faces with icosahedral symmetry. |
| You may note that the spheres sit more or less on the vertices of an icosahedron, which is why this configuration is called the icosahedral arrangement. |
| They suggested that spherical viruses such as Tomato bushy stunt virus had icosahedral symmetry and were made from 60 identical subunits. |
| But because of their fivefold symmetry, icosahedral clusters can't combine to form a regular crystal. |
| Transmission electron microscopy of thin sections of the liver revealed icosahedral virions in paracrystalline arrays within the nuclei of affected hepatocytes. |
| However they are of a very high quality which is not so frequent in India and often have more complex morphologies, such as icosahedral and bipyramidal shaped beads. |
