AM_Mammothite Formula: Pb6 Cu4 Al Sb O26 Cl4 S2 H16 Name: Mammothite Unit cell: 18.93 7.33 11.35 90.0 112.44 90.0 , V=1455.64 Space group: C12/M1 (12)

Effenberger H , Tschermaks Mineralogische und Petrographische Mitteilungen , 34 (1985) p.279-288, The crystal structure of mammothite, Pb6Cu4AlSbO2(OH)16Cl4(SO4)2, Locality: Mammoth vein, Tiger, Arizona, USA