Phyllosilicates - Tectosilicates

Tectosilicates

Main category: Tectosilicates

Tectosilicates, or "framework silicates," have a three-dimensional framework of silicate tetrahedra with SiO2 or a 1:2 ratio. This group comprises nearly 75% of the crust of the Earth. Tectosilicates, with the exception of the quartz group, are aluminosilicates. Nickel-Strunz classification: 09.F and 09.G, 04.DA (Quartz/ silica family)

  • Quartz group
    • Quartz - SiO2
    • Tridymite - SiO2
    • Cristobalite - SiO2
    • Coesite - SiO2
  • Feldspar family
    • Alkali-feldspars (potassium-feldspars)
      • Microcline - KAlSi3O8
      • Orthoclase - KAlSi3O8
      • Anorthoclase - (Na,K)AlSi3O8
      • Sanidine - KAlSi3O8
      • Albite - NaAlSi3O8
    • Plagioclase feldspars
      • Albite - NaAlSi3O8
      • Oligoclase - (Na,Ca)(Si,Al)4O8 (Na:Ca 4:1)
      • Andesine - (Na,Ca)(Si,Al)4O8 (Na:Ca 3:2)
      • Labradorite - (Na,Ca)(Si,Al)4O8 (Na:Ca 2:3)
      • Bytownite - (Na,Ca)(Si,Al)4O8 (Na:Ca 1:4)
      • Anorthite - CaAl2Si2O8
  • Feldspathoid family
    • Nosean - Na8Al6Si6O24(SO4)
    • Cancrinite - Na6Ca2(CO3,Al6Si6O24).2H2O
    • Leucite - KAlSi2O6
    • Nepheline - (Na,K)AlSiO4
    • Sodalite - Na8(AlSiO4)6Cl2
      • Hauyne - (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
    • Lazurite - (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2
  • Petalite - LiAlSi4O10
  • Scapolite group
    • Marialite - Na4(AlSi3O8)3(Cl2,CO3,SO4)
    • Meionite - Ca4(Al2Si2O8)3(Cl2CO3,SO4)
  • Analcime - NaAlSi2O6•H2O
  • Zeolite family
    • Natrolite - Na2Al2Si3O10•2H2O
    • Chabazite - CaAl2Si4O12•6H2O
    • Heulandite - CaAl2Si7O18•6H2O
    • Stilbite - NaCa2Al5Si13O36•17H2O
    • Scolecite - CaAl2Si3O10.3H2O
    • Mordenite - (Ca,Na2,K2)Al2Si10O24•7H2O

Read more about this topic:  Phyllosilicates