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Icosahedral symmetry: multiple twinning of 20 rhombohedral
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Icosahedral symmetry: multiple twinning of 20 rhombohedral cells
https://www.youtube.com/channel/UCeNplibjHdednjiqUY4IcEg
https://www.youtube.com/channel/UCeNplibjHdednjiqUY4IcEg
https://www.youtube.com/watch?v=mg1-18jqcbg
1 Shechtman, D., I. Blech, D. Gratias, and J.W. Cahn. “Metallic Phase with Long-Range Orientational Order and No Translational Symmetry.” Physical Review Letters 53.20: 1951-3 (1984).
2 Pauling, Linus. “Apparent icosahedral symmetry is due to directed multiple twinning of cubic crystals.” Nature 317 (October 1985): 512-14.
https://blog.sciencenet.cn/blog-2321-1126444.html
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