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In crystallography, the orthorhombic crystal system is one of the 7 crystal systems. Orthorhombic lattices result from stretching a cubic lattice along two of its orthogonal pairs by two different factors, resulting in a rectangular prism with a rectangular base ( a by b ) and height ( c ), such that a , b , and c are distinct.
I body centered (from the German Innenzentriert) F face centered (from the German Flächenzentriert) A centered on A faces only; B centered on B faces only; C centered on C faces only; R rhombohedral; A reflection plane m within the point groups can be replaced by a glide plane, labeled as a, b, or c depending on which axis the glide is along.
English: Face-centred orthorhombic crystal structure. Date: 2 March 2007: ... Description=Face-centered orthorhombic crystal structure. |Source=Crystal stucture ...
For face-centered cubic (fcc) and body-centered cubic (bcc) lattices, the primitive lattice vectors are not orthogonal. However, in these cases the Miller indices are conventionally defined relative to the lattice vectors of the cubic supercell and hence are again simply the Cartesian directions .
The following table gives the crystalline structure of the most thermodynamically stable form(s) for elements that are solid at standard temperature and pressure.Each element is shaded by a color representing its respective Bravais lattice, except that all orthorhombic lattices are grouped together.
Pages in category "Orthorhombic minerals" The following 200 pages are in this category, out of approximately 335 total. This list may not reflect recent changes.
An example of the tetragonal crystals, wulfenite Two different views (top down and from the side) of the unit cell of tP30-CrFe (σ-phase Frank–Kasper structure) that show its different side lengths, making this structure a member of the tetragonal crystal system. In crystallography, the tetragonal crystal system is one of the 7 crystal systems.
Crystal structure Density (g/cm 3) alpha (α) simple monoclinic: 19.86 : beta (β) body-centered monoclinic : 17.70 : gamma (γ) face-centered orthorhombic : 17.14 : delta (δ) face-centered cubic : 15.92 : delta prime (δ ′) body-centered tetragonal : 16.00 : epsilon (ε) body-centered cubic : 16.51