| 31. | They, however, excluded the described here icosahedron-based rare-earth borides.
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| 32. | The B1 sites form one icosahedron and the B2 B9 sites make up another icosahedron.
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| 33. | The B1 sites form one icosahedron and the B2 B9 sites make up another icosahedron.
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| 34. | Many viruses, such as the herpes virus, have the shape of a regular icosahedron.
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| 35. | Its vertex figure is an icosahedron, and its dual polytope is the 120-cell.
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| 36. | A Roman icosahedron has also come to light after having long been misclassified as a dodecahedron.
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| 37. | The two pentagonal faces of either shape can be augmented with pyramids to form the icosahedron.
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| 38. | Its dual, the great icosahedron, is related in a similar fashion to the icosahedron.
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| 39. | Its dual, the great icosahedron, is related in a similar fashion to the icosahedron.
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| 40. | The icosahedron formed by the B1 site atoms is located at the center of the supericosahedron.
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