Scalenoeder

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A scalenohedron (in ancient Greek: σκαληνός skalenos "limping, uneven, unequal") is a polyhedron bounded by congruent, unequal triangles . In nature, scalenohedra occur in the form of crystals : They are the general planar form of the ditrigonal-scalenohedral ( 3 m ) and the tetragonal-scalenohedral crystal class ( 4 2 m ).

  • (di-) trigonal scalenohedron

  • another view of the ditrigonal scalene heather

  • tetragonal scalenohedron

  • Scalenohedral hematite crystal