Bravais lattice

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Bravais lattice A lattice is a framework, resembling a three-dimensional, periodic array of points, on which a crystal is built. The smallest array which can be repeated is the ‘unit cell’. In 1850, M. A. Bravais showed that identical points can be arranged spatially to produce 14 types of regular pattern. These 14 space lattices are known as ‘Bravais lattices’.

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