nontronite Definition

pyrosmalite, helvite, babingtonite, kaoline, cubanite, ilvaite, chondrodite, lazulite, brochantite, aurichalcite, gismondine, dufrenite, okenite, hausmannite, mineral, ripidolite, triploidite, germanite, phillipsite, pargasite, liroconite, euclase, triplite, bournonite, stannite, olivenite, chalcanthite, libethenite, allophane, melanterite, tyrolite, cancrinite, cobaltite, volborthite, schreibersite, tennantite, nitrocalcite, menaccanite, ludlamite, warwickite, ferrocalcite, ludwigite, amblygonite, cyclosilicate, atacamite, ehlite, strontianite, euchroite, knebelite, oxalite, skutterudite, kernite, zinkenite, pectolite, homilite, gummite, kerolite, brushite, glaucodot, scorodite, levyne, proustite, ullmannite, dyscrasite, danalite, stephanite, pyritology, roselite, china clay, septarium, pigeonite, jamesonite, kieserite, halotrichite, melilite, caledonite, edingtonite, ferromagnesian, karpholite, datolite, hematinon, smaltite, gahnite, selenian, tephroite, calaverite, chamosite, annabergite, senarmontite, glauberite, hauerite, anglesite, mineraloid, stilpnomelane, boulangerite, thortveitite, epsomite, cimolite, boracite, triphylite,