Other Definitions
tetragonal (dict)
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TetragonalIn crystallography, the tetragonal crystal system is one of the 7 lattice point groups. Tetragonal lattices result from stretching a cubic lattice along one of its lattice vectors, so that the cube becomes a rectangular prism with a square base (a by a) and height (c, which is different from a). There are two tetragonal Bravais lattices: the simple tetragonal (from stretching the simple-cubic lattice) and the centered tetragonal (from stretching either the face-centered or the body-centered cubic lattice). simple tetragonal> b>body-centered
tetragonal | | etragonal, simple | Tetragonal, body-centered | The point groups that fall under this crystal system are listed below, followed by their representations in international notation and Schoenflies notation, and mineral examples. name> | b>international | Schoenflies | example | | itetragonal bipyramidal | | D4h | rutile | | itetragonal pyramidal | | C4v | | | etragonal bipyramidal | | C4h | | | etragonal pyramidal | 4 | C4 | wulfenite | | itetragonal alternating | | D2d | chalcopyrite | | etragonal trapezohedral | 422 | D4 | phosgenite | | etragonal alternating | | S4 |
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