Apatite with unit cell

Calcium, phosphorus, oxygen, and fluorine atoms for construction of Apatite hexagonal-cell model.

Model sizes (diameters):
Calcium - 16 mm; Phosphorus -12.7 mm; Oxygen - 10.9 mm; Fluorine - 10.9 mm;
Holes - 2.1 mm.

Example of final constructed model see on: https://skfb.ly/p9V7p

The bond lengths:
P--O - 18 mm (48 bonds);
Ca--F - 27 mm (6 bonds)
Ca-O - 29 mm (12 bonds), 27.5 mm (12 bonds), 31 mm (6 bonds), 28 mm (12 bonds), 28.6 mm (12 bonds), and 33 mm (12 bonds).
F--F - 40 mm
Lattice constants: a = b = 110 mm; c = 80.6 mm

Other information, video and discussions at https://t.me/SciCryst