AM_Ramsbeckite Formula: Cu11 Zn4 S4 (O28 Os16) H34 Name: Ramsbeckite Unit cell: 16.088 15.576 7.102 90.0 90.22 90.0 , V=1779.65 Space group: P121/A1 (14)

Effenberger H , Neues Jahrbuch fur Mineralogie, Monatshefte , 1988 (1988) p.38-48, Ramsbeckite, (Cu,Zn)15(OH)22(SO4)4*6(H2O):, Revision of the chemical formula based on a structure determination, Locality: Bastenberg mine, Ramsbeck, Sauerland, Germany