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.
03.04.13 03.04.13.01 Nowackiite Cu6Zn3As4S12 R 3 3 03.04.13.02 Aktashite Cu6Hg3As4S12 R 3 3 03.04.13.03 Gruzdevite Cu6Hg3Sb4S12 R 3 3