Silicate Minerals - Nesosilicates or Orthosilicates

Nesosilicates or Orthosilicates

Main category: Nesosilicates

Nesosilicates (from Greek νησος nēsos, island), or orthosilicates, have isolated (insular) 4− tetrahedra that are connected only by interstitial cations. Nickel-Strunz classification: 09.A

  • Phenakite group
    • Phenakite - Be2SiO4
    • Willemite - Zn2SiO4
  • Olivine group
    • Forsterite - Mg2SiO4
    • Fayalite - Fe2SiO4
  • Garnet group
    • Pyrope - Mg3Al2(SiO4)3
    • Almandine - Fe3Al2(SiO4)3
    • Spessartine - Mn3Al2(SiO4)3
    • Grossular - Ca3Al2(SiO4)3
    • Andradite - Ca3Fe2(SiO4)3
    • Uvarovite - Ca3Cr2(SiO4)3
    • Hydrogrossular - Ca3Al2Si2O8(SiO4)3-m(OH)4m
  • Zircon group
    • Zircon - ZrSiO4
    • Thorite - (Th,U)SiO4
  • 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)2(F,OH)2
    • Humite - Mg7(SiO4)3(F,OH)2
    • Clinohumite - Mg9(SiO4)4(F,OH)2
  • Datolite - CaBSiO4(OH)
  • Titanite - CaTiSiO5
  • Chloritoid - (Fe,Mg,Mn)2Al4Si2O10(OH)4

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