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octahedron
(redirected from octahedral)

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
octahedron: see polyhedron polyhedron , closed solid bounded by plane faces; each face of a polyhedron is a polygon. A cube is a polyhedron bounded by six polygons (in this case squares) meeting at right angles.
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octahedron
a solid figure having eight plane faces

octahedron [‚ak·tə′hē·drən]
(mathematics)
A polyhedron having eight faces, each of which is an equilateral triangle.


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Octahedral shaped diamonds are usually subjected to the brilliant cut, as it is makes it easier to craft two gemstones from a single rock.
Diamonds usually form as rounded octahedral and twinned octahedral, depending on the conditions that they have been formed in.
 
 
 
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