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Strunz Classification System

VIII  -  Silicates

Mineral Formula Classification
C  -  Sorosilicates
Series 2  -  Sorosilicates, with [Si2O7]6-, without anions unfamiliar to tetraheders
Leucophanite (Na,Ca)2BeSi2(O,OH,F)7  VIII / C.2-50
Barylite BaBe2Si2O7  VIII / C.2-80
Series 3  -  Rankinite - Cebollite series
Manganokukisvumite Na6MnTi4Si8O28 · 4H2 VIII / C.4-20
Series 4  -  Sorosilicates, with [Si2O7]6-, without anions unfamiliar to tetraheders
Parakeldyshite Na2ZrSi2O7  VIII / C.4-20
Series 8  -  Sorosilicates, with [Si2O7]6-, without anions unfamiliar to tetraheders [O,OH,F]
Hemimorphite Zn4Si2O7(OH)2 · H2 VIII / C.8-10
Series 11  -  Sorosilicates, with [Si2O7]6-, without anions unfamiliar to tetraheders [O,OH,F]
Wöhlerite NaCa2(Zr,Nb)Si2O7(O,OH,F)2  VIII / C.11-10
Normandite NaCa(Mn2+,Fe2+)(Ti,Nb,Zr)Si2O7(O,F)2  VIII / C.11-15
Låvenite (Na,Ca)2(Mn,Fe2+)(Zr,Ti)Si2O7
    (O,OH,F) 
VIII / C.11-20
Hiortdahlite (Ca,Na)3(Zr,Ti,Y)Si2O7(O,OH,F)2  VIII / C.11-50
Series 12  -  Sorosilicates, with [Si2O7]6-, without anions unfamiliar to tetraheders [O,OH,F]
Götzenite (Ca,Na)3(Ti,Al)Si2O7(F,OH)2  VIII / C.12-10
Mosandrite Na2Ca4(Ce,Y)(Ti,Zr)(Si2O7)2OF3  VIII / C.12-20
Rinkite (Na,Ca)3(Ca,Ce,Nd)4Ti[(F,O)2|Si2O7]2  VIII / C.12-25
Series 13  -  Sorosilicates, with [Si2O7]6-, without anions unfamiliar to tetraheders [O,OH,F]
Rosenbuschite (Ca,Na)3(Zr,Ti)Si2O8 VIII / C.13-10
Lamprophyllite Na2(Sr,Ba)2Ti3(SiO4)4(OH,F)2  VIII / C.13-30
Barytolamprophyllite (Na,K)2(Ba,Ca,Sr)2(Ti,Fe)3(SiO4)4
    (O,OH)2 
VIII / C.13-40
Series 23  -  Sorosilicates, mixed structure with [SiO4]2- and [Si2O7]6- groups
Epidote Ca2(Fe3+,Al)3(SiO4)3(OH)  VIII / C.23-20
Allanite-(Ce) (Ce,Ca,Y)2(Al,Fe3+)3(SiO4)3(OH)  VIII / C.23-80
Series 26  -  Sorosilicates, mixed structure with [SiO4]2- and [Si2O7]6- groups
Vesuvianite Ca10Mg2Al4(SiO4)5(Si2O7)2(OH)4  VIII / C.26-10
D  -  Unclassified silicates
Series 2  -  Mostly cations of small size [Mg,Fe,Mn,Cu]
Zakharovite Na4Mn52+Si10O24(OH)6 · 6H2 VIII / D.2-10
Series 3  -  Mostly cations of small size [Mg,Fe,Mn,Cu]
Perraultite Na2KBaMn82+(Ti,Nb)4Si8O32
    (OH,F,H2O)7 
VIII / D.3-20
Series 20  -  Mostly cations of big size [Na,K,Ca,Sr,Pb]
Thornasite (Na,K)ThSi11(O,F,OH)25 · 8H2 VIII / D.20-10


Strunz Classification System
I - II - III - IV - V - VI - VII - VIII/A - VIII/B - VIII/C -
VIII/D - VIII/E - VIII/F - VIII/G - VIII/H - VIII/J - SW