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Dana 8 Classification

61 Cyclosilicates Cyclosilicate Six-Membered Rings

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

61.01.01 Beryl group

Beryl Be3Al2Si6O18 hexagonal P6/mcc 6/mmm 61.01.01.01
Bazzite Be3(Sc,Al)2Si6O18 hexagonal P6/mcc 6/mmm 61.01.01.02
Indialite Mg2Al4Si5O18 hexagonal P6/mcc 6/mmm 61.01.01.03
Stoppaniite Fe3+2Be3Si6O18·H2O hexagonal P6/mcc 6/mmm 61.01.01.04
Pezzottaite Cs(Be2Li)Al2Si6O18 trigonal R3c 3m 61.01.01.05

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

Lovozerite Na3CaZrSi6O15(OH)3 trigonal R3 3 61.01.02a.01
Kazakovite Na6(Mn,H2)TiSi6O18 trigonal R3m 3m 61.01.02a.02
Tisinalite Na3H3(Mn2+,Ca,Fe)TiSi6(O,OH)18·2H2O trigonal P3 3 61.01.02a.03
Zirsinalite Na6(Ca,Mn,Fe2+)ZrSi6O18 trigonal R3m 3m 61.01.02a.04
Combeite Na2Ca2Si3O9 trigonal P3121 32 61.01.02a.05
Kapustinite Na5.5Mn0.25ZrSi6O16(OH)2 monoklin C2/m 2/m 61.01.02a.06

61.01.02b Lovozerite group (Ortho and MON subgroup)

Imandrite Na12Ca3Fe23+Si12O36 orthorhombisch Pmnn mmm 61.01.02b.01
Koashvite Na6(Ca,Mn)(Ti,Fe)Si6O18·H2O orthorhombisch Pmnb mmm 61.01.02b.02
Petarasite Na5Zr2Si6O18(Cl,OH)·2H2O monoklin P21/m 2/m 61.01.02b.03
Litvinskite Na2(Na,Mn2+)<1Zr[Si6(O,OH)18] monoklin Cm m 61.01.02b.04

61.01.03

Dioptase CuSiO3·H2O trigonal R3 3 61.01.03.01

61.01.04 Baratovite group

Baratovite KCa7(Ti,Zr)2Li3Si12O36F2 monoklin C2/c 2/m 61.01.04.01
Katayamalite KLi3Ca7Ti2(SiO3)12(OH)2 monoklin C2/c 2/m 61.01.04.02

61.01.05

Odintsovite K2(Na,Li)4Ca3Be4Ti4+2[O|Si6O18]2 orthorhombisch Fddd mmm 61.01.05.01

61.01.06

Gerenite-(Y) (Ca,Na)2(Y,Ce)3[Si6O18]·2H2O triklin P1 1 61.01.06.01



Mineralsystematik-Übersicht