AM_Pyromorphite
Formula: Pb5 P3 O12 Cl
Name: Pyromorphite
Unit cell: 9.9764 9.9764 7.3511 90.0 90.0 120.0 , V=633.62
Space group: P63/M (176)

Dai Y S , Hughes J M , The Canadian Mineralogist , 27 (1989) p.189-192, Crystal-structure refinements of vanadinite and pyromorphite