This arrangement of mineral species is based on Dana's New Mineralogy by Richard V. Gaines, H. Catherine Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig, with sections by Vandall T. King, Illustrations by Eric Dowty, (ISBN: 047119310-0) Copyright © 1997, John Wiley & Sons, Inc.". This material is used by permission of John Wiley & Sons, Inc. Follow this link for a short discussion on the Dana Classification Number.
40.03.06 Vivianite Group 40.03.06.01 Vivianite Fe++3(PO4)2•8(H2O) C 2/m 2/m 40.03.06.02 Baricite (Mg,Fe++)3(PO4)2•8(H2O) C 2/m 2/m 40.03.06.03 Erythrite Co3(AsO4)2•8(H2O) I2/m 2/m 40.03.06.04 Annabergite Ni3(AsO4)2•8(H2O) I2/m 2/m 40.03.06.05 Kottigite Zn3(AsO4)2•8(H2O) C 2/m 2/m 40.03.06.06 Parasymplesite Fe++3(AsO4)2•8(H2O) C 2/m 2/m 40.03.06.07 Hornesite Mg3(AsO4)2•8(H2O) I2/m 2/m 40.03.06.08 Arupite (Ni,Fe++)3(PO4)2•8(H2O) I2/m 2/m 40.03.06.09 Pakhomovskyite! Co3(PO4)2•8(H2O) C 2/m 2/m