illite
Noun
Meaning
illite (countable and uncountable, plural illites)
(mineralogy) A micaceous phyllosilicate clay mineral with aggregates of grey or white monoclinic crystals.
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Examples
It has moderate CEC.sfnsfnsfnsfnsfn *Vermiculite is a mica-based clay similar to illite, but the crystals of clay are held together more loosely by hydrated magnesium and it will swell, but not as much as does montmorillonite.
No more than half the clay content should be expansive clays with the remainder non-expansive illite or kaolinite.
Potassium fixation often occurs when soils dry and the potassium is bonded between layers of illite clay.