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Rhombohedron
(redirected from rhombohedra)

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rhombohedron
a six-sided prism whose sides are parallelograms
rhombohedron [¦räm·bō¦hē·drən]
(crystallography)
A trigonal crystal form that is a parallelepiped, the six identical faces being rhombs. Also known as rhomb.
(mathematics)
A prism with six parallelogram faces.
Rhombohedron 

a parallelepiped (usually oblique) whose faces are equal rhombuses. For at least two vertices all the adjacent angles must be equal. A parallelepiped is a rhombohedron if and only if it has an axis of three-fold symmetry.
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First the Nl points in the isopachous layer are decorated with equilateral rhombohedra ([alpha] = -15).
Modeling of multiscale porous media by Biswal, Bibhu; Oren, Pal-Eric; Held, Rudolf J.; Bakke, Stig; Hilfer, Rudolf / Image Analysis and Stereology
The family of proteins from the prismatic layer induced a habit modification in calcite growth, yielding globular growth instead of the rhombohedra obtained in the absence of proteins.
Shell microstructure, mineralogy and in vitro crystallization studies ... by Tan, Beiping / Journal of Shellfish Research
The Randville dolomite and the Vulcan Iron Formation contain vugs of calcite scalenohedra, dolomite rhombohedra, pyrite cubes, and marcasite blades.
Geological Sciences by Michigan Academician
 
 
 
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