Kaolin clay in the context of "Cation-exchange capacity"

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⭐ Core Definition: Kaolin clay

Kaolinite (/ˈkeɪ.ələˌnaɪt, -lɪ-/ KAY-ə-lə-nyte, -⁠lih-; also called kaolin) is a clay mineral, with the chemical composition Al2Si2O5(OH)4. It is a layered silicate mineral, with one "tetrahedral" sheet of silicate tetrahedra (SiO4) linked to one "octahedral" sheet of aluminate octahedrons (AlO2(OH)4) through oxygen atoms on one side, and another such sheet through hydrogen bonds on the other side.

Kaolinite is a soft, earthy, usually white, mineral (dioctahedral phyllosilicate clay), produced by the chemical weathering of aluminium silicate minerals like feldspar. It has a low shrink–swell capacity and a low cation-exchange capacity (1–15 meq/100 g).

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Kaolin clay in the context of Temper (pottery)

A temper is a non-plastic material added to clay to prevent shrinkage and cracking during drying and firing of vessels made from the clay. Tempers may include:

Some clays used to make pottery do not require the addition of tempers. Pure kaolin clay does not require tempering. Some clays are self-tempered, that is, naturally contain enough mica, sand, or sponge spicules that they do not require additional tempering.

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LINKED FROM (PARENTS)
← Temper (pottery)
LINKS TO (CHILDREN)
Clay mineral → Aluminium → Silicon → Oxygen → Hydroxide → Silicate mineral → Silicate → Tetrahedron → Aluminate → Octahedron → Atom → Hydrogen bond → Clay → Aluminium silicate → Feldspar → Shrink–swell capacity → Cation-exchange capacity →