Concept information
Preferred term
illite
Definition
- 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 are responsible for the absence of swelling. Structurally, illite is quite similar to muscovite with slightly more silicon, magnesium, iron, and water and slightly less tetrahedral aluminium and interlayer potassium. (Adapted from: https://en.wikipedia.org/wiki/Illite)
Broader concept
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/QX8-VKNDH0KM-Q
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