• Illite - Wikipedia

    en.wikipedia.org/wiki/Illite Illite 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. The space between this T-O-T sequence of layers is occupied by poorly hydrated potassium cations which ...
  • Illite | mineral | Britannica

    www.britannica.com/science/illite 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. It may form a chemical series with both muscovite and
  • Illite | Definition of Illite by Merriam-Webster

    www.merriam-webster.com/dictionary/illite Illite definition is - any of a group of clay minerals having essentially the crystal structure of muscovite.
  • Illite - an overview | ScienceDirect Topics

    www.sciencedirect.com/topics/earth-and-planetary-sciences/illite Illite in sandstones has a range of morphologies, from undulose platelets (‘cornflake’ texture) at one end of the spectrum to laths, fibres, wisps, or ribbons (‘hairy’ illite) at the other. In fact, the elongate form is not fibrous, but sometimes the particles are so long that they appear so. Wispy illite particles are typically only a few 100 Å thick and 0.1–0.4 μm wide.
  • Illite | Definition of Illite at Dictionary.com

    www.dictionary.com/browse/illite Illite definition, 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. See more.
  • Illite: Mineral information, data and localities.

    www.mindat.org/min-2011.html Illite is dioctahedral, although some references are known which incorrectly refer to "illite" as a similar alteration sequence of trioctahedral micas, although some concomitant Mg substitution in octahedral sites has been suggested. Illite is typically found as extremely fine-grained masses of grayish-white to silvery-gray, sometimes greenish ...
  • Illite - an overview | ScienceDirect Topics

    www.sciencedirect.com/topics/agricultural-and-biological-sciences/illite Illite. Illite is mostly inherited from the parent material, whereas smectite often results from neoformation processes taking place in soils with a non-leaching regime, as is the case with many Vertisols.
  • Wisconsin Geological & Natural History Survey » Illite

    wgnhs.wisc.edu/minerals/illite LAFAYETTE COUNTY: Illite is a component of the shale at the base of the Quimbys Mill Member of the Platteville formation at the Thompson-Temperly Mine at the south edge of New Diggings (SE sec. 27 T.1N. R.1E.). The particular illite polymorph changes from the Md polymorph to the 1M and 2M polymorph progressively toward the mineralized zone.
  • Illite Mineral Data

    webmin.mindat.org/data/Illite.shtml General Illite Information : Chemical Formula: (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)] Composition: Molecular Weight = 389.34 gm Potassium 6.03 % K 7.26 % K 2 O: Magnesium 1.87 % Mg 3.11 % MgO: Aluminum 9.01 % Al 17.02 % Al 2 O 3: Iron 1.43 % Fe 1.85 % FeO: Silicon 25.25 % Si 54.01 % SiO 2: Hydrogen 1.35 % H 12.03 % H 2 O
  • USGS OFR01-041: Illite Group Minerals

    pubs.usgs.gov/of/2001/of01-041/htmldocs/clays/illite.htm 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. However, illite has on average slightly more Si, Mg, Fe, and water and slightly ...