Organized by textbook: https://learncheme.com/
The seven crystal systems are discussed and examples of cubic and tetragonal structures are given. Ceramic structures are discussed and an example of the perovskite unit cell is given. Made by faculty at the University of Colorado Boulder Department of Chemical and Biological Engineering.
Check out our Materials Science playlist at
http://www.youtube.com/playlist?list=PLC9CE6BFBB0D003CD