Montmorillonite
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Montmorillonite is a very soft phyllosilicate group of minerals that form when they precipitate from water solution as microscopic crystals, known as clay. It is named after Montmorillon in France. Mo
A sample of montmorillonite
Bentonite
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Bentonite is an absorbent swelling clay consisting mostly of montmorillonite which can either be Na-montmorillonite or Ca-montmorillonite. Na-montmorillonite has a considerably greater swelling capaci
Montmorillonite
…for the demolition of concrete structures where the use of explosive charges is unacceptable. This swelling property makes montmorillonite-containing bentonite useful also as an annular seal or plug for water wells and as a protective liner for landfills. Other uses include as an anticaking agent in animal…
Bentonite layers from an ancient deposit of weathered volcanic ash tuff in Wyoming
Gray shale and bentonites (Benton Shale; Colorado Springs, Colorado)
Making a bentonite slurry for fining after wine pressing