AM_Boggsite_3 Formula: (Al2.12 Si9.88) O24 Ca.971 Name: Boggsite Unit cell: 20.053 23.838 12.85 90.0 90.0 90.0 , V=6142.60 Space group: IMMA (74)

Zanardi S , Cruciani G , Alberti A , Galli E , American Mineralogist , 89 (2004) p.1033-1042, Dehydration and rehydration process in boggsite: an in-situ X-ray single-crystal study, Note: Ca represents an unknown distribution across the Ca sites of, [Ca.806,Mg.138,Na.041,K.007,Fe.006,Sr.001], Note: Reported occupancies are discrepant with reported formula., Sample: BOG-350, T = 350 C