AM_Brewsterite-Sr_4
Formula: Sr.71 Ba.24 K.01 Al2 Si6 O21 H10
Name: Brewsterite-Sr
Unit cell: 6.793 17.573 7.759 90.0 94.54 90.0 , V=923.31
Space group: P121/M1 (11)

Schlenker J L , Pluth J J , Smith J V , Acta Crystallographica, Section B , 33 (1977) p.2907-2910, Refinement of the crystal structure of brewsterite, Ba0.5Sr1.5Al4Si12O32*10H2O