Pyritohedron
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In geometry, a pyritohedron is an irregular dodecahedron with pyritohedral (Th) symmetry. Like the regular dodecahedron, it has twelve identical pentagonal faces, with three meeting in each of the 20 vertices. However, the pentagons are not regular, and the structure has no five-fold symmetry axes. Its 30 edges are divided into two sets - containing 24 and 6 edges of the same length. Although regular dodecahedra do not exist in crystals, the distorted pyritohedron form occurs in the crystal pyrite, and it may be an inspiration for the discovery of the the regular Platonic solid form.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786131021671
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Größe H220mm x B220mm
- EAN 9786131021671
- Format Fachbuch
- Titel Pyritohedron
- Herausgeber Betascript Publishing
- Anzahl Seiten 84
- Genre Mathematik
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