Introduction to Crystallography: Lecture 2 — Crystals

A series of lectures and handout notes given by Dr. Cora Lind for her Chem 4980/6850/8850: X-ray Crystallography course at the University of Toledo (Ohio). These lectures introduce concepts in crystallography, such as the lattice, symmetry, single-crystal and powder diffraction, crystal structure determination and refinement.

This lecture discusses what is a crystal, defines the concept of a unit cell and defines the seven classes of unit cells. Growth of crystals is also discussed. The sharp facets of crystals are determined by the underlying symmetry of the unit cell; these facets are described by Miller indices.

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