(optional) more on crystallography

Crystallography is a topic worth an entire course in its own right. If you feel like exploring this topic further (optional), then you find here a few additional resources:

• The Basics of Crystallography (lecture notes by Gabriele Mogni)
• a paper on Crystallographic Information Resources by Leslie Glasser (access might depend on your institutional subscription to ACS)
• A great guide through the classification of crystals and the terminology used, including a list of common mistakes and their corrections.
• A review paper on “Free Tools for Crystallographic Symmetry Handling and Visualization“
• A website to inspect interactively symmetry operations for any space group.
• The Bilbao Crystallographic Server has many tools and information to work with crystallographic concepts (e.g. the WYCKPOS tool offers general coordinates for every wyckoff site in any space group).
• The ISOTROPY software suite is another go-to place with crystallographic tools (e.g. FINDSYM to detect the space group of a given cif file, or ISOSPACEGROUP which is very similar to WYCKPOS in the Bilbao server),
• two lecture videos on crystallographic terminology, explained step by step: