WOLFRAM|DEMONSTRATIONS PROJECT

Helices of Tetrahedra

number of helices

1

2

3

4

number in x direction

1

2

3

4

number in y direction

1

2

3

4

height of helix

3

4

5

6

7

8

9

10

separate in x direction

separate in y direction

Tetrahedra are arranged along helices connected at vertices. Groups of such helices are placed side by side. If a group contains two helices, then the structure can be regarded as a model of a quartz crystal structure.