AM_Nyholmite Formula: Cd2.89 Zn1.05 Cu.44 Mn.52 Al.04 Ca.02 Pb.04 (As2.98 P1.02) O20 H8.68 Name: Nyholmite Unit cell: 18.062 9.341 9.844 90.0 96.17 90.0 , V=1651.23 Space group: C12/C1 (15)

Elliott P , Turner P , Jensen P , Kolitsch U , Pring A , Mineralogical Magazine , 73 (2009) p.723-735, Description and crystal structure of nyholmite, a new mineral related to hureaulite,, from Broken Hill,New South Wales, Australia, Locality: Broken Hill, New South Wales, Australia