Choose one, or all of our specific structures models to introduce concepts of unit cells, coordination numbers and crystal systems; or as valuable aids when discussing solid state, X-ray diffraction, cohesive forces and other topics. (The characteristic unit cell can be indicated by colored thread or colored connecting rods).

• The models comprise 1", color-coded, wooden spheres attached by sturdy metal rods
• Dimensions along each edge vary from 4 to 9", depending upon the structure represented
• Each model is furnished completely assembled

A comprehensive, illustrated teacher's guide explains the fundamental crystal systems and discusses the use of each model.