11. The dodecahedron-first orthographic projection of the dodecahedral prism into 3D space has a dodecahedral envelope. 12. The dodecahedron-first orthographic projection of the dodecahedral prism into 3D space has a dodecahedral envelope. 13. It is a tetrahedral number, the sum of the first ten triangular numbers, and a dodecahedral number. 14. The Poincar?homology sphere, also called Poincar?dodecahedral space, is a particular example of a homology sphere. 15. It has Schl�fli symbol { 5, 3, 5 } with 5 hemi-dodecahedral cells around each edge. 16. Octahedral cleavage ( four directions ) is present in fluorite and diamond, and sphalerite has six-directional dodecahedral cleavage. 17. Depending on the species, multiple subunits of dihydrolipoyl transacetylase enzymes can arrange together into either a cubic or dodecahedral shape. 18. They are dodecahedral in shape and are composed of two hexagonal, pyrimidal valves joined at their bases by a suture. 19. Lastly the dodecahedral ditope, { 5, 3, 2 } exists on a 3-sphere, with 2 hemispherical cells. 20. The pentagonal-prism-first orthographic projection of the dodecahedral prism into 3D space has a decagonal envelope ( see diagram ).
