AM_Yugawaralite Formula: Si6 Al2 O20.29 Ca Name: Yugawaralite Unit cell: 6.732 14.0157 10.0607 90.0 111.189 90.0 , V=885.09 Space group: P1C1 (7)

Artioli G , Stahl K , Cruciani G , Gualtieri A , Hanson J C , American Mineralogist , 86 (2001) p.185-192, In situ dehydration of yugawaralite, Sample: at T = 315 K