AM_Staurolite_11 Formula: O12 Si1.92 Al4.507 Fe.778 Li.1 Mg.04 Name: Staurolite Unit cell: 7.8633 16.6118 5.6505 90.0 90.139 90.0 , V=738.09 Space group: C12/M1 (12)

Hawthorne F C , Ungaretti L , Oberti R , Caucia F , Callegari A , The Canadian Mineralogist , 31 (1993) p.551-582, The crystal chemistry of staurolite. I. Crystal structure and site populations, Sample Code: 71-62R/6, Locality: Black Mountains, New Hampshire, USA