illite


illite
illitic /i lit"ik/, adj.
/il"uyt/, n.
any of a group of clay minerals, hydrous potassium aluminosilicates, characterized by a three-layer micalike structure and a gray, light green, or yellowish-brown color.
[1937; ILL(INOIS) + -ITE1]

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      any of a group of mica-type clay minerals widely distributed in marine shales and related sediments. Illite contains more water and less potassium than true micas, but it has a micalike sheet structure and is poorly crystallized. It may form a chemical series with both muscovite and montmorillonite; it is a weathering product of muscovite and alters to montmorillonite under humid conditions. For chemical formula and detailed structure and physical properties, see clay mineral (table); mica (table).

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Universalium. 2010.

Look at other dictionaries:

  • 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) layer. The interlayer space is mainly… …   Wikipedia

  • Illite — Catégorie IX : silicates[1] Général Formule brute (K,H3O)(Al,Mg,Fe)2(Si,Al)4 …   Wikipédia en Français

  • illite — ● illite nom féminin (de Illinois, nom propre) Minéral argileux de structure et de composition proches de celles des micas, abondant dans les sols des régions tempérées. ● illite (synonymes) nom féminin (de Illinois, nom propre) Minéral argileux… …   Encyclopédie Universelle

  • illite — ☆ illite [il′īt΄ ] n. [< ILL(INOIS) + ITE1] any of a group of micalike clay minerals usually consisting of interlayered muscovite and montmorillonite …   English World dictionary

  • illite — ilitas statusas T sritis chemija apibrėžtis Mineralas. formulė (K,H₃O)(Al,Mg,Fe)₂(SiAl)₄O₁₀[(OH)₂,H₂O] atitikmenys: angl. hydromuscovite; illite rus. гидромусковит; иллит ryšiai: sinonimas – hidromuskovitas …   Chemijos terminų aiškinamasis žodynas

  • illite — noun Etymology: Illinois, state of United States + 1 ite Date: 1937 any of a group of clay minerals having essentially the crystal structure of muscovite • illitic adjective …   New Collegiate Dictionary

  • illite — noun A micaceous phyllosilicate mineral with aggregates of grey or white monoclinic crystals. Syn: hydromica, hydromuscovite …   Wiktionary

  • illite —    A clay mineral …   Lexicon of Cave and Karst Terminology

  • illite — il·lite …   English syllables

  • illite — il•lite [[t]ˈɪl aɪt[/t]] n. mir any of a group of clay minerals, hydrous potassium aluminosilicates, characterized by a three layer micalike structure and a gray, light green, or yellowish brown color • Etymology: 1937; Ill(inois)+ ite I… …   From formal English to slang


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