In a crown, the rhombuses are identical.

The summits are located on plans perpendicular to the axis (the levels).

The distance between 2 levels is constant for a given area.

3 parameters determine a precise zome

__ __*** N is the order number** (integer from 3)

The crown number = N - 1 depends on it

The number of facets per crown = N

The total number of facets = N * (N - 1)