Fig. 3.
The superposition of one OHAp cell (the alternate choice indicated in Fig. 1) with half of an OCP cell projected down its c-axis. The open circles represent atomic positions in OHAp, while the small filled circles represent those in OCP.
The superposition of one OHAp cell (the alternate choice indicated in Fig. 1) with half of an OCP cell projected down its c-axis. The open circles represent atomic positions in OHAp, while the small filled circles represent those in OCP.