Bentonite ni minerval idafite ubutare hamwe na montmorillonite nkibigize imyunyu ngugu.Imiterere ya montmorillonite ni ubwoko bwa 2: 1 bwububiko bwa kirisiti bugizwe na tetrahedrons ebyiri ya silicon ogisijeni yashyizwe hamwe na octahedron ya aluminium.Kuberako imiterere igizwe na selile ya montmorillonite ifite cations zimwe na zimwe, nka Cu, Mg, Na, K, nibindi, kandi uruhare rwiyi cations hamwe na selile ya montmorillonite ntiruhungabana cyane, byoroshye guhanahana nizindi cations, ifite ion nziza ubushobozi bwo guhana.Mu mahanga, yakoreshejwe mu mashami arenga 100 mu bice 24 by’inganda n’ubuhinzi, hamwe n’ibicuruzwa birenga 300, bityo abantu bakabyita “ubutaka rusange”.

Bentonite izwi kandi nka bentonite, bentonite, cyangwa bentonite.Ubushinwa bufite amateka maremare yo kwiteza imbere no gukoresha bentonite, ubusanzwe yakoreshwaga gusa.Hariho ibirombe byafunguye mu gace ka Renshou muri Sichuan mu binyejana byashize, kandi abaturage baho bavugaga ko bentonite ari ifu y'ibumba.Irakoreshwa cyane ariko ifite amateka yimyaka irenga ijana.Ubuvumbuzi bwa mbere muri Amerika bwari mu bice bya kera bya Wyoming.Ibumba rya chartreuse rishobora kwaguka muri paste nyuma yo kongeramo amazi.Nyuma, abantu bita ibumba ryose hamwe nuyu mutungo bentonite.Mubyukuri, imyunyu ngugu nyamukuru ya bentonite ni montmorillonite, hamwe na 85-90%.Ibintu bimwe na bimwe bya bentonite nabyo bigenwa na montmorillonite.Montmorillonite irashobora kuba mumabara atandukanye, nkicyatsi kibisi cyumuhondo, umuhondo cyera, imvi, cyera, nibindi. Irashobora gukora ibice byimbitse cyangwa ubutaka bworoshye, hamwe no kunyerera iyo bikubiswe intoki.Nyuma yo kongeramo amazi, ingano yibice bito yaguka inshuro nyinshi kugeza kuri 20-30, igaragara muburyo bwahagaritswe mumazi, no muburyo bwa paste mugihe hari amazi make.Imiterere ya montmorillonite ifitanye isano nimiterere yimiti nimiterere yimbere.