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- Illite abstract "Illite is a non-expanding, clay-sized, micaceous mineral. Illite is a phyllosilicate or layered alumino-silicate. Its structure is constituted by the repetition of tetrahedron – octahedron – tetrahedron (TOT) layers. The interlayer space is mainly occupied by poorly hydrated potassium cations responsible for the absence of swelling, even though its structure is constituted by TOT layers. Structurally illite is quite similar to muscovite with slightly more silicon, magnesium, iron, and water and slightly less tetrahedral aluminium and interlayer potassium. The chemical formula is given as (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)], but there is considerable ion substitution. It occurs as aggregates of small monoclinic grey to white crystals. Due to the small size, positive identification usually requires x-ray diffraction or SEM-EDS (automated mineralogy) analysis. Illite occurs as an alteration product of muscovite and feldspar in weathering and hydrothermal environments; it may be a component of sericite. It is common in sediments, soils, and argillaceous sedimentary rocks as well as in some low grade metamorphic rocks. The iron rich member of the illite group, glauconite, in sediments can be differentiated by x-ray analysis.The cation exchange capacity (CEC) of illite is smaller than that of smectite but higher than that of kaolinite, typically around 20 – 30 meq/100 g. Illite was first described for occurrences in the Maquoketa shale in Calhoun County, Illinois, USA, in 1937. The name was derived from its type location in Illinois.Illite is also called hydromica or hydromuscovite. Brammallite is a sodium rich analogue. Avalite is a chromium bearing variety which has been described form Mt. Avala, Belgrade, Serbia.".
- Illite thumbnail Illite.jpg?width=300.
- Illite wikiPageID "2034220".
- Illite wikiPageRevisionID "603866398".
- Illite category "Mica - Phyllosilicates".
- Illite cleavage "{001} Perfect".
- Illite color "Grey-white to silvery-white, greenish-gray".
- Illite dana "71.02".
- Illite diaphaneity "Translucent".
- Illite formula "24".
- Illite gravity "2.6".
- Illite habit "Micaceous aggregates".
- Illite hasPhotoCollection Illite.
- Illite luster "Pearly to dull".
- Illite mohs "1".
- Illite name "Illite".
- Illite opticalprop "Biaxial".
- Illite refractive "nα = 1.535 - 1.570 nβ = 1.555 - 1.600 nγ = 1.565 - 1.605".
- Illite streak "white".
- Illite strunz "9".
- Illite system "Monoclinic - Prismatic, 2/m".
- Illite subject Category:Aluminium_minerals.
- Illite subject Category:Aluminosilicates.
- Illite subject Category:Clay_minerals_group.
- Illite subject Category:Magnesium_minerals.
- Illite subject Category:Medicinal_clay.
- Illite subject Category:Mica_group.
- Illite subject Category:Potassium_minerals.
- Illite type Abstraction100002137.
- Illite type AluminiumMinerals.
- Illite type MagnesiumMinerals.
- Illite type Material114580897.
- Illite type Matter100020827.
- Illite type Mineral114662574.
- Illite type Part113809207.
- Illite type PhysicalEntity100001930.
- Illite type PotassiumMinerals.
- Illite type Relation100031921.
- Illite type Substance100019613.
- Illite type ChemicalSubstance.
- Illite type Mineral.
- Illite type ChemicalObject.
- Illite type Thing.
- Illite comment "Illite is a non-expanding, clay-sized, micaceous mineral. Illite is a phyllosilicate or layered alumino-silicate. Its structure is constituted by the repetition of tetrahedron – octahedron – tetrahedron (TOT) layers. The interlayer space is mainly occupied by poorly hydrated potassium cations responsible for the absence of swelling, even though its structure is constituted by TOT layers.".
- Illite label "Illiet".
- Illite label "Illit".
- Illite label "Illit".
- Illite label "Illita".
- Illite label "Illite".
- Illite label "Illite".
- Illite label "Illite".
- Illite label "Иллит".
- Illite sameAs Illit.
- Illite sameAs Illit.
- Illite sameAs Illita.
- Illite sameAs Illite.
- Illite sameAs Illite.
- Illite sameAs Illiet.
- Illite sameAs Illit.
- Illite sameAs m.06gmsz.
- Illite sameAs Q1145804.
- Illite sameAs Q1145804.
- Illite sameAs Illite.
- Illite wasDerivedFrom Illite?oldid=603866398.
- Illite depiction Illite.jpg.
- Illite isPrimaryTopicOf Illite.
- Illite name "Illite".
