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  1. Illite - Wikipedia

    Illite, also called hydromica or hydromuscovite, [6] is a group of closely related non-expanding clay minerals. Illite is a secondary mineral precipitate, and an example of a phyllosilicate, or layered alumino-silicate. Its structure is a 2:1 sandwich of silica tetrahedron (T) – alumina octahedron (O) – silica tetrahedron (T) layers. [5] .

  2. Illite | Properties, Formation, Uses » Geology Science

    May 1, 2023 · Illite is a type of clay mineral that belongs to the group of non-expanding or non-swelling phyllosilicate minerals. It is a common constituent of sedimentary rocks, such as shale, and can also be found in soils and weathered rocks.

  3. Illite: Mineral information, data and localities. - mindat.org

    Illite is a very common mica and clay mineral, typically found as extremely fine-grained masses of grayish-white to silvery-gray, sometimes greenish-gray, material. The literature on "illite" is very large as it is a widespread component of many sediments, especially marine; despite this it is poorly defined and variably considered a mineral ...

  4. Illite Mineral Data

    Illite. Comments: Wispy, authigenic illite crystals lining a pore space in sandstone. SEM image from a core sample. Location: Unknown. Scale: Picture size 33 µ-m. © OMNI Laboratories, Inc

  5. Illite - an overview | ScienceDirect Topics

    Illite is defined as a dioctahedral 2:1 phyllosilicate commonly found in soils and sedimentary rocks. It is a type of clay mineral with a non-expandable layer and various chemical compositions, often used as a series name due to its structural characteristics. You might find these chapters and articles relevant to this topic.

  6. Illite: What is Illite, Properties, Formation, Uses – Geology In

    Illite is a group of closely related non-expanding clay minerals. It is a secondary mineral precipitate, and an example of a phyllosilicate, or layered alumino-silicate. Illite is a member of the mica family, but it has a lower potassium content and a higher layer charge than other micas.

  7. Illite | Clay, Soil, Sediment | Britannica

    illite, 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.

  8. USGS OFR01-041: Illite Group Minerals - USGS Publications …

    Illite is essentially a group name for non-expanding, clay-sized, dioctahedral, micaceous minerals. It is structurally similar to muscovite in that its basic unit is a layer composed of two inward-pointing silica tetragonal sheets with a central octahedral sheet.

  9. Illite | Formula, Properties & Application

    Illite is a secondary mineral precipitate and an example of a phyllosilicate, or layered alumino-silicate. Its structure consists of a 2:1 clay layer, meaning it has two tetrahedral sheets of silica sandwiching a central octahedral sheet of alumina.

  10. ILLITE Definition & Meaning - Merriam-Webster

    The meaning of ILLITE is any of a group of clay minerals having essentially the crystal structure of muscovite.

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