AM_Brewsterite-Sr_2 Formula: Sr.517 Si2.99 Al1.01 O8.79 H2 Name: Brewsterite-Sr Unit cell: 6.676 16.547 7.543 90.0 94.41 90.0 , V=830.79 Space group: P121/M1 (11)

Alberti A , Sacerdoti M , Quartieri S , Vezzalini G , Physics and Chemistry of Minerals , 26 (1999) p.181-186, Heating-induced phase transformation in zeolite brewsterite:, new 4- and 5-coordinated (Si,Al) sites, Sample: BR280R