A report on Crystallography and Crystal system

A crystalline solid: atomic resolution image of strontium titanate. Brighter spots are columns of strontium atoms and darker ones are titanium-oxygen columns.
The diamond crystal structure belongs to the face-centered cubic lattice, with a repeated two-atom pattern.
Molecular model of penicillin by Dorothy Hodgkin, 1945
Hexagonal hanksite crystal, with threefold c-axis symmetry
Photograph of DNA (photo 51), Rosalind Franklin, 1952
Octahedral and tetrahedral interstitial sites in a face centered cubic structure
Kikuchi lines in an electron backscatter diffraction pattern of monocrystalline silicon, taken at 20 kV with a field-emission electron source

In crystallography, a crystal system is a set of point groups (a group of geometric symmetries with at least one fixed point).

- Crystal system

Coordinates in angle brackets or chevrons such as <100> denote a family of directions which are related by symmetry operations. In the cubic crystal system for example, would mean or the negative of any of those directions.

- Crystallography
A crystalline solid: atomic resolution image of strontium titanate. Brighter spots are columns of strontium atoms and darker ones are titanium-oxygen columns.

2 related topics with Alpha

Overall

A rock containing three crystals of pyrite (FeS2). The crystal structure of pyrite is primitive cubic, and this is reflected in the cubic symmetry of its natural crystal facets.

Cubic crystal system

0 links

A rock containing three crystals of pyrite (FeS2). The crystal structure of pyrite is primitive cubic, and this is reflected in the cubic symmetry of its natural crystal facets.
A network model of a primitive cubic system
The primitive and cubic close-packed (also known as face-centered cubic) unit cells
Visualisation of a diamond cubic unit cell: 1. Components of a unit cell, 2. One unit cell, 3. A lattice of 3 x 3 x 3 unit cells
A caesium chloride unit cell. The two colors of spheres represent the two types of atoms.
This graphic shows the interlocking simple cubic lattices of cesium and chlorine. You can see them separately and as they are interlocked in what looks like a body-centered cubic arrangement
The rock-salt crystal structure. Each atom has six nearest neighbours, with octahedral geometry.
A zincblende unit cell
The structure of the Heusler compounds with formula X2YZ (e. g., Co2MnSi).
Diagram of the iron monosilicide structure.
Weaire–Phelan structure

In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube.

Bravais lattice

0 links

In geometry and crystallography, a Bravais lattice, named after, is an infinite array of discrete points generated by a set of discrete translation operations described in three dimensional space by

In two-dimensional space there are 5 Bravais lattices, grouped into four lattice systems, shown in the table below.