Dana Cyclosilicate Classification<br><small>6-Membered Rings</small>

Dana Cyclosilicate Classification
6-Membered Rings

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Minerals Arranged by the New Dana Classification

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.

Note: Space Group in Red   Point Group in Green.
* - Not IMA Approved.

! - Dana Number Added or Changed.

? - IMA Discredited Mineral Name.

Dana Cyclosilicate Classification
6-Membered Rings


61.01 Cyclosilicates Cyclosilicate Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution

61.01.01 Beryl group

61.01.01.01 Beryl Be3Al2Si6O18 P 6/mmc 6/m 2/m 2/m
61.01.01.02 Bazzite Be3(Sc,Al)2Si6O18 P 6/mcc 6/m 2/m 2/m
61.01.01.03 Indialite Mg2Al4Si5O18 P 6/mcc 6/m 2/m 2/m
61.01.01.04 Stoppaniite! (Fe,Al,Mg)4(Na,[ ])2[Be6Si12O36]•2(H2O) P 6/mmc 6/m 2/m 2/m
61.01.01.05 Pezzottaite! Cs(Be2Li)Al2Si6O18 R 3c 3m

61.01.02a Lovozerite group (HEX and HEX-R subgroup)

61.01.02a.01 Lovozerite H4Na2Ca(Zr,Ti)[Si6O18] R 3m 3 2/m
61.01.02a.02 Kazakovite Na6Mn++TiSi6O18 R 3m 3 2/m
61.01.02a.03 Tisinalite Na3H3(Mn++,Ca,Fe)TiSi6(O,OH)18•2(H2O) R 3m 3 2/m
61.01.02a.04 Zirsinalite Na6(Ca,Mn,Fe++)Zr[Si6O18] R 3m 3 2/m
61.01.02a.05 Combeite Na2Ca2Si3O9 P 3221,P 3121 3 2
61.01.02a.06 Kapustinite! Na5.5Mn0.25ZrSi6O16(OH)2 C 2/m 2/m

61.01.02b Lovozerite group (Ortho and MON subgroup)

61.01.02b.01 Imandrite Na12Ca3Fe+++2Si12O36 Pnnm 2/m 2/m 2/m
61.01.02b.02 Koashvite Na6(Ca,Mn)(Ti,Fe)Si6O18•(H2O) Pmnb 2/m 2/m 2/m
61.01.02b.03 Petarasite Na5Zr2Si6O18(Cl,OH)•2(H2O) P 21/m 2/m
61.01.02b.04 Litvinskite! Na2([ ],Na,Mn)Zr[Si6O12(OH,O)6] Cm m

61.01.03

61.01.03.01 Dioptase CuSiO2(OH)2 R 3 3

61.01.04 Baratovite group

61.01.04.01 Baratovite KCa7(Ti,Zr)2Li3Si12O36F2 C 2/c 2/m
61.01.04.02 Katayamalite (K,Na)Ca7Li3Ti2[Si6O18]2(OH,F)2 C1 1
61.01.04.03 Faizievite! K2Na(Ca6Na)Ti4Li6Si24O66F2 P1 1
61.01.04.04 IMA2009-004 KCa7Sn2Li3Si12O36F2 C 2/m 2/m

61.01.05

61.01.05.01 Odintsovite K2Na4Ca3Ti2Be4Si12O38 F ddd 2/m 2/m 2/m

61.01.06

61.01.06.01 Gerenite-(Y)! (Ca,Na)2(Y,REE)3Si6O18•2(H2O) P1 1