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Experimental studies on zeolite formation conditions

U. Barth-Wirsching and H. Hoeller
Experimental studies on zeolite formation conditions
European Journal of Mineralogy (August 1989) 1 (4): 489-506


Natural zeolite formation was simulated in experiments using both natural basaltic and rhyolitic glass, nepheline and oligoclase as starting materials; the reacting solutions were Na, K-, Ca- solutions of different concentrations. Gismondine and thomsonite were synthesized from nepheline only; faujasite-type zeolite X, levyne and scolecite from basaltic glass only; clinoptilolite, epistilbite and mordenite from rhyolitic glass only; garronite from both oligoclase and basaltic glass, heulandite from both oligoclase and rhyolitic glass; merlinoite from both basaltic and rhyolitic glass, phillipsite from nepheline, basaltic and rhyolitic glass; analcite and wairakite from all the starting materials investigated. Solution pH primarily controls zeolite Si/Al ratio, although the influence of starting material Si/Al ratio is affected profoundly by Si removal or addition (through the migrating solution). The concentration and distribution of alkali and alkaline earth cations in the zeolite being formed are determined by their amounts and concentrations both in the starting material and in the initial solution. Zeolite water content is affected by T as well as reaction time. In closed- system reactions starting material, pH, T and reaction time are factors of equal significance.

ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 1
Serial Issue: 4
Title: Experimental studies on zeolite formation conditions
Affiliation: Tech. Univ. Graz, Inst. Tech. Geol. Angew. Mineral., A-8010 Graz, Austria
Pages: 489-506
Published: 198908
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 24
Accession Number: 1993-015436
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: 10 tables
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany
Update Code: 1993
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