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Hermann-Mauguin symbols

См. также в других словарях:

  • Kubisches Kristallsystem — Würfelförmiger Pyrit, Navajún, La Rioja, Spanien …   Deutsch Wikipedia

  • Tetragonales Kristallsystem — Roter Zirkon (Größe: 1,0 cm) aus Gilgit, Pakistan …   Deutsch Wikipedia

  • Space group — In mathematics and geometry, a space group is a symmetry group, usually for three dimensions, that divides space into discrete repeatable domains. In three dimensions, there are 219 unique types, or counted as 230 if chiral copies are considered… …   Wikipedia

  • Wallpaper group — A wallpaper group (or plane symmetry group or plane crystallographic group) is a mathematical classification of a two dimensional repetitive pattern, based on the symmetries in the pattern. Such patterns occur frequently in architecture and… …   Wikipedia

  • Crystallographic point group — In crystallography, a crystallographic point group is a set of symmetry operations, like rotations or reflections, that leave a central point fixed while moving other directions and faces of the crystal to the positions of features of the same… …   Wikipedia

  • Orbifold notation — In geometry, orbifold notation (or orbifold signature) is a system, invented by William Thurston and popularized by the mathematician John Conway, for representing types of symmetry groups in two dimensional spaces of constant curvature. The… …   Wikipedia

  • Symbol — Zeichen; Vorzeichen; Signal; Piktogramm; Ikon; Bildzeichen; Token; Markierung; Merkmal; Emblem; Wahrzeichen; Hoheitszeichen; …   Universal-Lexikon

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