31. 1 ) Icosahedral -An icosahedron is a polygon with 12 vertices and 20 faces. 32. Icosahedral symmetry is identical to cubic symmetry.33. The quasicrystal has a composition of Al 63 Cu 24 Fe 13 and icosahedral symmetry. 34. There are many symmetric forms, and the ones with highest symmetry have icosahedral symmetry: 35. Metagenomic evidence suggests that microviruses ( icosahedral ssDNA phages ) are particularly prevalent in marine habitats. 36. The capsid has icosahedral symmetry, is non-enveloped and around 70 nm in diameter. 37. ;Icosahedral : Most animal viruses are icosahedral or near-spherical with chiral icosahedral symmetry. 38. ;Icosahedral : Most animal viruses are icosahedral or near-spherical with chiral icosahedral symmetry. 39. ;Icosahedral : Most animal viruses are icosahedral or near-spherical with chiral icosahedral symmetry. 40. These all have icosahedral symmetry and may be obtained as stellations of the dodecahedron and the icosahedron.
