International Centre for Diffraction Data (ICDD)
International Centre for Diffraction Data
Site of the nonprofit that maintains the Powder Diffraction File, the reference database for identifying crystalline materials from X-ray diffraction patterns. It also offers tutorials, webinars and workshops on powder diffraction, helping researchers match measured patterns to known phases and interpret crystal structures.
More resources on Crystal Structures & Defects
Materials Project
Open database from Lawrence Berkeley National Laboratory holding computed properties for over a hundred thousand inorganic crystals. Users can look up a compound's structure, symmetry, formation energy and phase diagram, and pull the same data through a Python API.
DoITPoMS
Interactive teaching package from Cambridge's Department of Materials Science and Metallurgy, covering lattices, unit cells, close packing, symmetry operations and the seven crystal systems, with animations and self-assessment questions that build fluency reading crystal structures.
Introduction to Solid State Chemistry (MIT 3.091SC)
First-year chemistry taught through solid-state materials: atomic structure, bonding, crystal structures, defects, glasses, phase diagrams, kinetics and electrochemistry. 59 lecture videos, course notes, homework and exams with solutions let learners connect chemical principles to engineering materials.
crystallography.net
Crystallography.net is an educational resource offering free access to crystal-structure data and interactive visualization tools, plus tutorials and references on crystal symmetry and defects.
Introduction to Crystallography
Short Dover text covering lattice points, unit cells, point groups, space groups and equivalent positions, then x-ray diffraction and structure determination. Worked problems with solutions let readers self-check; ends with descriptions of simple crystal structures.
Crystals, Defects and Microstructures
Graduate text on modeling materials across length scales, from atomistic and continuum descriptions of point defects and dislocations up to microstructural evolution. Shows how to choose and connect models rather than apply single formulas.