AM_Shattuckite Formula: Cu5 Si4 O14 H2 Name: Shattuckite Unit cell: 9.885 19.832 5.3825 90.0 90.0 90.0 , V=1055.18 Space group: PCAB (61)

Evans H T , Mrose M E , American Mineralogist , 62 (1977) p.491-502, The crystal chemistry of the hydrous copper silicates, shattuckite and, plancheite, Note: sample is from Ajo, Arizona