Amphibole group Anthophyllite – Cummingtonite series Cummingtonite – Grunerite – Tremolite series Tremolite – Actinolite – Hornblende – Sodium amphibole group Glaucophane – Riebeckite (asbestos) – Arfvedsonite – Phyllosilicates Phyllosilicates (from Greek 'leaf'), or sheet silicates, form parallel sheets of silicate tetrahedra with or a 2:5 ratio. The Nickel–Strunz classification is 09.E. All phyllosilicate minerals are hydrated, with either water or hydroxyl groups attached. Examples include: Serpentine subgroup Antigorite – Chrysotile – Lizardite – Clay minerals group 1:1 clay minerals (TO) Halloysite – Kaolinite – 2:1 clay minerals (TOT) Pyrophyllite – Talc – Illite – Montmorillonite (smectite) – Chlorite – Vermiculite – Other clay minerals Sepiolite – Palygorskite (or attapulgite) – Mica group Biotite – Fuchsite – Muscovite – Phlogopite – Lepidolite – Margarite – Glauconite – Tectosilicates Tectosilicates, or "framework silicates," have a three-dimensional framework of silicate tetrahedra with in 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. The Nickel–Strunz classifications are 09.F and 09.G, 04.DA (Quartz/ silica family). Examples include: 3D-Silicates, quartz family Quartz – Tridymite – Cristobalite – Coesite – Stishovite – Moganite – Chalcedony – Tectosilicates, feldspar group Alkali feldspars (potassium feldspars) Microcline – Orthoclase – Anorthoclase – Sanidine – Plagioclase feldspars Albite – Oligoclase – (Na:Ca 4:1) Andesine – (Na:Ca 3:2) Labradorite – (Na:Ca 2:3) Bytownite – (Na:Ca 1:4) Anorthite – Tectosilicates, feldspathoid family Nosean – Cancrinite – Leucite – Nepheline – Sodalite – Hauyne – Lazurite – Tectosilicates, scapolite group Marialite – Meionite – Tectosilicates, zeolite family Natrolite – Erionite – Chabazite – Heulandite – Stilbite – Scolecite – Mordenite – Analcime – See also References External links Mindat.org, Dana classification Webmineral : Dana's New Silicate Classification ja:ケイ酸塩鉱物 pl:Krzemiany