AM_Reinhardbraunsite_2 Formula: Ca5 (Si1.96 P.04) O9.26 F.97 H1.26 Name: Reinhardbraunsite Unit cell: 11.458 5.052 8.84 90.0 108.91 90.0 , V=484.09 Space group: P121/A1 (14)

Kirfel A , Hamm H M , Will G , Tschermaks Mineralogische und Petrographische Mitteilungen , 31 (1983) p.137-150, The crystal structure of reinhardbraunsite, Ca5(SiO4)2(OH,F)2, a new mineral, of the calcio-chondrodite type, Locality: synthetic