Subclasses:
'' (or ''orthosilicates'') have isolated {Link without Title} 4−
Tetrahedra that are connected only by interstitial cations.
- Phenacite group
- --- Phenacite - Be2SiO4
- --- Willemite - Zn2SiO4
- Olivine group
- --- Forsterite - Mg2SiO4
- --- Fayalite - Fe2SiO4
- Garnet group
- --- Pyrope - Mg3Al2()3
- --- Almandine - Fe3Al2()3
- --- Spessartine - Mn3Al2()3
- --- Grossular - Ca3Al2()3
- --- Andradite - Ca3Fe2()3
- --- Uvarovite - Ca3Cr2()3
- --- Hydrogrossular - Ca3Al2Si2O8(SiO4)1-m(OH)4m
- Zircon group
- --- Zircon - Zr2SiO4
- --- Thorite - (Th,U)2SiO4
- Al2SiO5 group
- --- Andalusite - Al2SiO5
- --- Kyanite - Al2SiO5
- --- Sillimanite - Al2SiO5
- --- Dumortierite - Al6.5-7BO3(SiO4)3(O,OH)3
- --- Topaz - Al2SiO4(F,OH)2
- --- Staurolite - Fe2Al9(SiO4)4(O,OH)2
- Humite group - (Mg,Fe)7(SiO4)3(F,OH)2
- --- Norbergite - Mg3(SiO4)(F,OH)2
- --- Chondrodite - Mg5(SiO4)(F,OH)2
- --- Humite - Mg7(SiO4)(F,OH)2
- --- Clinohumite - Mg9(SiO4)(F,OH)2
- Datolite - CaBSiO4(OH)
- Titanite - CaTiSiO5
- Chloritoid - (Fe,Mg,Mn)2Al4Si2O10(OH)4
'' have isolated double tetrahedra groups with (Si2O7)6− or a ratio of 2:7.
'', ring silicates, have linked tetrahedra with (SixO3x)2x- or a ratio of 1:3. These exists as 3-member (Si3O9)6-, 4-member (Si4O12)8- and 6-member (Si6O18)12- rings.
- 3-member ring
- --- Benitoite - BaTi(Si3O9)
- 4-member ring
- --- Axinite - (Ca,Fe,Mn)3Al2(BO3)(Si4O12)(OH)
- 6-member ring
- --- Beryl / Emerald - Be3Al2(Si6O18)
- --- Cordierite - (Mg,Fe)2Al3(Si5AlO18)
- --- Tourmaline - (Na,Ca)(Al,Li,Mg)3-(Al,Fe,Mn)6(Si6O18)(BO3)3(OH)4
'', chain silicates, have interlocking chains of silicate tetrahedra with either SiO3, 1:3 ratio, for single chains or Si4O11, 4:11 ratio, for double chains.
'', sheet silicates (from Greek φύλλον ''phyllon'', leaf), form parallel sheets of silicate tetrahedra with Si2O5 or a 2:5 ratio.
'', 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 Aluminosilicate s.
]]
Ferroan Anorthosite #60025 ( Plagioclase Feldspar). Collected by Apollo 16 from the Lunar Highlands near Descartes Crater . ]]
- Quartz group
- --- Quartz - SiO2
- --- Tridymite - SiO2
- --- Cristobalite - SiO2
- Feldspar group
- ---Alkali-feldspars
--Potassium-feldspars
- Microcline - KAlSi3O8
- Orthoclase - KAlSi3O8
- Sanidine - KAlSi3O8
-- Anorthoclase - (Na,K)AlSi3O8
-- 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 group
- --- Analcime - NaAlSi2O6·H2O
- --- 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 group
- --- Natrolite - Na2Al2Si3O10•2H2O
- --- Chabazite - CaAl2Si4O12•6H2O
- --- Heulandite - CaAl2Si7O18•6H2O
- --- Stilbite - NaCa2Al5Si13O36•17H2O
- Hurlbut, Cornelius S., 1966 pr, ''Dana's Manual of Mineralogy'', 17th ed., ISBN 0-471-03288-3
- Hurlbut, Cornelius S.; Klein, Cornelis, 1985, ''Manual of Mineralogy'', 20th ed., ISBN 0-471-80580-7
- Mineral gallery
- Minerals.net
- mindat.org mineral database
- Webmineral.com
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