AM_Deerite Formula: Fe9 Si6 O25 H5 Name: Deerite Unit cell: 10.786 18.88 9.564 90.0 107.45 90.0 , V=1857.98 Space group: P121/A1 (14)

Fleet M E , American Mineralogist , 62 (1977) p.990-998, The crystal structure of deerite, Note: sample is from a riebeckite-deerite-garnet schist, near Panoche, San Benito County, California, USA