AM_Maricopaite Formula: Pb3.746 (Si18.192 Al5.808) O59.5 H46 Name: Maricopaite Unit cell: 19.434 19.702 7.538 90.0 90.0 90.0 , V=2886.21 Space group: CM2M (38)

Rouse R C , Peacor D R , American Mineralogist , 79 (1994) p.175-184, Maricopaite, an unusual lead calcium zeolite with an interrupted mordenite-like, framework and intrachannel Pb4 tetrahedral clusters