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Dana Classification System

Nesosilicates

Mineral Formula Classification
51.  -  Insular SiO4 groups only
51.1.1/ - Phenakite group
Willemite Zn2SiO4 51.1.1.2
51.4.3/ - Garnet group
Almandine Fe3Al2(SiO4)3 51.4.3a.2
Spessartine Mn3Al2(SiO4)3 51.4.3a.3
Andradite Ca3Fe23+(SiO4)3 51.4.3b.1
Grossular Ca3Al2(SiO4)3 51.4.3b.2
Hibschite Ca3Al2(SiO4)3-x(OH)4x(x=0.2-1.5) 51.4.3d.1
51.5.2/ - Zircon group
Zircon ZrSiO4 51.5.2.1
Thorite ThSiO4 51.5.2.3
Thorogummite (Th,U)(SiO4)1-x(OH)4x 51.5.2.5
52.  -  Insular SiO4 groups and O,OH,F, and H2
 
Titanite (Ca,REE)(Ti,Al,Fe)SiO4(O,OH,F) 52.4.3.1
Cerite-(Ce) Ce9Ca(Fe3+,Mg)(SiO4)6[(SiO3)
     (OH)](OH,F)3
52.4.6.1
Britholite-(Ce) (Ce,REE,Ca,Na)5[(Si,P)O4]3(OH,F) 52.4.9.1
Fluorbritholite-(Ce) (REE,Ca)5(Si,P)3O12F 52.4.9.8
54.  -  Borosilicates and some beryllosilicates
54.2.1/ - Datolite - gadolinite group
Datolite CaBSiO4(OH) 54.2.1a.1
Hingganite-(Ce) Ce2Be2(SiO4)2(OH)2 54.2.1a.2
Hingganite-(Y) Y2Be2Si2O8(OH)2 54.2.1a.3
54.2.2/ - Datolite - gadolinite related series
Tadzhikite (Ca,Ce)3-4(Y,Ce)2(Ti,Al,Fe3+)B4Si4O22
     (O,OH)2
54.2.2.2
Stillwelite-(Ce) (Ce,La,Th,Ca)BSiO5 54.2.3.2



Dana System Classes

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