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
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
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
