pyritohedron
pyritohedron (pentagonal dodecahedron) A crystal form within the cubic system consisting of a twelve-faced, closed form (a dodecahedron) with each crystal face having five sides, but not in the shape of a regular pentagon. It is a common form of the mineral pyrite.
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Octahedron , oc·ta·he·dron / ˌäktəˈhēdrən/ • n. (pl. -drons or -dra / -drə/ ) a three-dimensional shape having eight plane faces, esp. a regular solid figure with… Polyhedron , A polyhedron is a closed, three-dimensional solid bounded entirely by at least four polygons, no two of which are in the same plane. Polygons are fla… Prism , Prism
In Euclidean geometry, a prism is a three-dimensional figure, or solid, having five or more faces, each of which is a polygon. Polygons, in tur… Sphenoid , sphenoid A wedge-shaped, four-faced, closed form, normally occurring in the tetragonal or orthorhombic crystal systems, but with a special form (the… Form , FORM
From the Latin forma, a term signifying figure or shape or "that which is seen" (Gr. ε[symbol omitted]δος) and having many derived meanings, suc… Face , face The face is the most complex-surface structure of human and other vertebrate anatomy — in humans containing a total of 14 bones and 32 teeth: it…
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pyritohedron