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The difference between the isometric system and the tetragonal system is that one of the three axes is longer or shorter than the other two. This produces a unique direction in the tetragonal crystals giving rise to the reference of the tetragonal system as uniaxial.
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www.galleries.com/minerals/symmetry/tetragon.htm
www.galleries.com/minerals/symmetry/tetragon.htm
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Orthorhombic crystals are often shaped like rhombic prisms or dipyramids (two pyramids stuck together). They often look a bit like tetragonal crystals except that they are not square in cross section (when you look at the crystal on end)
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www.windows.ucar.edu/tour/link=/earth/geology/crystal_s...
www.windows.ucar.edu/tour/link=/earth/geology/crystal_shapes2.html
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In crystals of the isometric system each face is an identical equilateral triangle. In crystals of the tetragonal system each face is an identical isoceles triangle; this variant of the tetrahedron is called a tetragonal tetrahedron.
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dave.ucsc.edu/myrtreia/crystal.html
dave.ucsc.edu/myrtreia/crystal.html
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This paper gives the general expressions for the compliance s'ijkl, Young's modulus E(hkl) and Poisson's ratio v(hkl, θ) along arbitrary loading direction [hkl] for tetragonal crystals. ... Keywords: tetragonal crystals, elastic properties, representation surfaces, representation curves...
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www.iop.org/EJ/abstract/1674-1056/17/5/006
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The Cell Press web sites are offline for essential maintenance ... If your institution has a license, you can access the content of these journals via the following URLs during the maintenance period. ... Authors can submit manuscripts to the journals via the following urls during the maintenance period.
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www.cell.com/structure/abstract/S0969-2126(01)00241-6
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A Tetragonal crystal is a simple cubic that is stretched along its (c) axis to form a rectangular prism. The Tetragonal crystal will have a square base and top, but a height that is taller. By continuing to stretch the "body-centered" cubic one ... Crystals that form in the Monoclinic System have three unequal axes.
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www.khulsey.com/jewelry/crystalline_structures.html
www.khulsey.com/jewelry/crystalline_structures.html
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Any mineral that falls under the following specifications belongs to the tetragonal crystal system: Three axes, two are equal in length, one is unequal. All three axes are at 90° to each other. (See Crystals in mineral properties for more information...
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www.minerals.net/glossary/terms/t/tetragon.htm
www.minerals.net/glossary/terms/t/tetragon.htm
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exposition of the morphology of crystals belonging to the tetragonal crystal system. ... The Tetragonal Crystal System ... For a general introduction into Crystal Systems and Crystal Classes, see the Essay on The Morphology of Crystals, which the reader should first consult, if he or she is not familiar with Crystal Symmetry...
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metafysica.nl/tetragonal.html
metafysica.nl/tetragonal.html
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Abstract. The existence of certain directions in zircon and rutile crystals in which internal conical refraction of elastic waves can occur is predicted.
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stacks.iop.org/0022-3727/6/305
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