University of Pennsylvania
University of Pennsylvania: Solid State Chemistry: Describing Crystalline Solids
This site contains in-depth information on crystalline solids. Includes basic concepts, pictures, learning graphs, and useful tools.
MadSci Network
The Mad Scientist Network: Chemistry
Using a question and answer format, this page addresses the question: "What effect may crystallization have on the optical properties of a material?" Crystalline and amorphous solids are compared and contrasted; their properties are...