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.
08.06 Multiple Oxides with Nb, Ta, and Ti 08.06.01 Franconite Group 08.06.01.01 Franconite Na2Nb4O11•9(H2O) Unk Mono 08.06.01.02 Hochelagaite (Ca,Na,Sr)Nb4O11•8(H2O) Unk Mono 08.06.01.03 Ternovite! (Mg,Ca)Nb4O11-n(H2O) where n ~ 10 P 2/m,P 2,Pm Mono 08.06.02 Calciotantite Group 08.06.02.01 Calciotantite Ca(Ta,Nb)4O11 P 6322 6 2 2 08.06.02.02 Natrotantite Na2Ta4O11 R 3-c 3 2/m 08.06.02.03 Irtyshite Na2(Ta,Nb)4O11 P 63/m 6/m
08.06.01 Franconite Group 08.06.01.01 Franconite Na2Nb4O11•9(H2O) Unk Mono 08.06.01.02 Hochelagaite (Ca,Na,Sr)Nb4O11•8(H2O) Unk Mono 08.06.01.03 Ternovite! (Mg,Ca)Nb4O11-n(H2O) where n ~ 10 P 2/m,P 2,Pm Mono
08.06.02 Calciotantite Group 08.06.02.01 Calciotantite Ca(Ta,Nb)4O11 P 6322 6 2 2 08.06.02.02 Natrotantite Na2Ta4O11 R 3-c 3 2/m 08.06.02.03 Irtyshite Na2(Ta,Nb)4O11 P 63/m 6/m