Home > Dana System



Dana Classification System

Dana Classification
Phyllosilicates

Mineral Formula Classification
71.  -  Sheets of six-membered rings
71.1.1/ - Kaolinite - serpentine group, kaolinite subgroup
Kaolinite Al2Si2O5(OH)4 71.1.1.2
71.1.2b/ - Kaolinite - serpentine group, serpentine - lizardite related subgroup
Lizardite Mg3(Si,Al)2O5(OH)4 71.1.2b.2
71.1.2c/ - Kaolinite - serpentine group, serpentine - amesite related subgroup
Berthierine Fe22+Al(SiAl)O5(OH)4 71.1.2c.2
Kellyite (Mn,Mg,Al)3(Si,Al)2O5(OH)4 71.1.2c.5
71.1.5/ - Allophane group
Hisingerite (Fe,Mn)SiO3,Fe23+Si2O7 · 2H2O 71.1.5.2
Neotocite Mn3+SiO3 · H2O 71.1.5.4
71.2.2a/ - Mica group, muscovite subgroup
Muscovite KAl2(AlSi3O10)(OH,F)2 71.2.2a.1
Ferroceladonite K2Fe22+Fe22+Si8O20(OH)4 71.2.2a.13
71.2.2b/ - Mica group, biotite subgroup
Phlogopite KMg3(AlSi3O10)(F,OH)2 71.2.2b.1
Biotite K(Fe2+,Mg)3(AlSi3O10)(OH,F)2 71.2.2b.2
Annite KFe32+(AlSi3O10)(OH,F)2 71.2.2b.3
Siderophyllite KFe22+Al(Al2Si2O10)(F,OH)2 71.2.2b.5
Polylithionite KLi2Al(Si4O10)(F,OH)2 71.2.2b.8
Tainiolite KLiMg2(Si4O10)F2 71.2.2b.9
71.2.2d/ -
Vermiculite (Mg,Fe++,Al)3(Al,Si)4O10(OH)2· 4 H2O 71.2.2d.3
71.3.1a/ - Smectite group, dioctahedral subgroup
Montmorillonite (Na,Ca0.5)0.33(Al,Mg)2Si4O10(OH)2 · nH2O 71.3.1a.2
Nontronite (Na,Ca0.5)0.33(Fe3+,Al)2(Si,Al)4O10(OH)2 ·
     nH2O
71.3.1a.3
71.3.1b/ - Smectite group, trioctahedral subgroup
Saponite (Ca0.5,Na)0.33(Mg,Fe2+)3(Si,Al)4O10(OH)2 ·
     4H2O
71.3.1b.2
71.4.1/ - Chlorite group
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8 71.4.1.4
Baileychlore Zn3[Fe2+2Al][Si3AlO10](OH)8 71.4.1.6
Chamosite Fe23+(Fe22+Al)(Si3AlO10)(OH,O)8 71.4.1.7



Dana System Classes

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 U W