This example shows the atomic structure of diamonds.
Diamonds consist of carbon atoms each being bound to four others as indicated by the blue lines.
Using points instead is possible because LiveGraphics3D is able to change the size of points with respect to the distance from the point of view. After creating the example above I found some packages by Alastair McLean which display many kinds of crystal structures. The last output was copied into this HTML page as a parameter of the LiveGraphics3D applet. In order to show some flickering all edges are randomly colored.