Bentonite imineral isiri yesimbi ine montmorillonite sechikamu chikuru chemineral. Chimiro chemontmorillonite chimiro chekristaro chemhando ye2:1 chakaumbwa nesilicon oxygen tetrahedrons mbiri dzakasungirirwa nealuminium oxide octahedron. Nekuti chimiro chakaumbwa nemontmorillonite cell chine mamwe macation, akadai seCu, Mg, Na, K, nezvimwewo, uye basa remacation aya nemontmorillonite cell harina kugadzikana, riri nyore kuchinjana nemamwe macation, rine kugona kwakanaka kwekuchinjana maion. Kunze kwenyika, yakashandiswa mumadhipatimendi anopfuura zana muminda makumi maviri nemana yekugadzirwa kwemaindasitiri nekurima, ine zvigadzirwa zvinopfuura mazana matatu, saka vanhu vanoidana kuti "ivhu repasi rose".

Bentonite inozivikanwawo se bentonite, bentonite, kana bentonite. China ine nhoroondo refu yekuvandudza nekushandisa bentonite, iyo pakutanga yaingoshandiswa semushonga wekusuka. Kwaiva nemigodhi yakavhurika munzvimbo yeRenshou yeSichuan mazana emakore apfuura, uye vagari vemo vaiti bentonite ivhu revhu. Inoshandiswa zvakanyanya asi ine nhoroondo yemakore anopfuura zana chete. Kuwanikwa kwekutanga muUnited States kwaive muzvikamu zvekare zveWyoming. Ivhu rechartreuse rinogona kukura kuita paste mushure mekuwedzera mvura. Gare gare, vanhu vakadana ivhu rese rine hunhu uhwu bentonite. Kutaura zvazviri, chicherwa chikuru chebentonite imontmorillonite, ine huwandu hwe85-90%. Zvimwe zvinhu zvebentonite zvinotsanangurwawo nemontmorillonite. Montmorillonite inogona kuva nemavara akasiyana-siyana, akadai segirini yeyero, chena yeyero, grey, chena, nezvimwewo. Inogona kuumba mabhuroko akaomarara kana ivhu rakasununguka, nekunzwa kunotsvedza kana ichikweshwa neminwe. Mushure mekuwedzera mvura, huwandu hwemabhuroko madiki hunokura kakawanda kusvika ka20-30, huchionekwa mumvura yakamiswa, uye huchionekwa sepaste kana mvura shoma. Hunhu hwemontmorillonite hunoenderana nekuumbwa kwayo nemakemikari uye chimiro chemukati.