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Mineralogy and crystallographic properties of heu-type zeolitic tuff from the novakovic deposit, Bosnia and Herzegovina

dc.creatorRadosavljević-Mihajlović, Ana S.
dc.creatorDaković, Aleksandra S.
dc.creatorKašić, Vladan
dc.creatorMitić, Vojislav V.
dc.creatorStojanović, Jovica N.
dc.creatorSokić, Miroslav D.
dc.creatorMarković, Branislav R.
dc.date.accessioned2019-03-27T10:41:40Z
dc.date.available2019-03-27T10:41:40Z
dc.date.issued2018
dc.identifier.issn0367-598X
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/5250
dc.description.abstractThis paper presents mineralogical and crystallographic characterization of the zeolitic tuff from the Novakovic deposit, Republic of Bosnia and Herzegovina. The zeolitic tuff is of a whitish color composed of Ca-clinoptilolite and an amorphous phase (volcanic glass and amorphous SiO 2 ). The zeolitic tuff was analyzed by X-ray diffraction of the polycrystalline sample (XRPD), scanning electron microscopy and energy dispersive spectroscopy (SEM/EDS), and differential thermal and thermogravimetric (DTA/DTG) methods. According to the results obtained, it can be concluded that the studied zeolitic tuff is composed of Heu-type minerals. Based on the chemical analysis, thermal treatment and XRPD analysis it was determined that this is a mineral Ca-clinoptilolite. Thermal analysis in the temperature range from 300 up to 700°C showed that the examined zeolite minerals from the Novaković deposit are stable up to the temperature of 600°C. The crystal structure of Ca-clinoptilolite has been refined in the centrosymmetric space group C2/m (S.G. 12) with disordered distribution of Al and Si in the tetrahedral framework. The unit-cell parameters are as follows: a = 17.662 Å, b = 17.874 Å, c = 7.402 Å, β = 116.32° and V = 2122.73 Å 3 . The basic structural motif is represented by four channels. Three channels are composed of eight-membered rings, and one of ten-membered rings. The ten-membered (channel A) and one eight-membered channel (B) are parallel to the crystallographic axis c, and the other eight-membered channel is parallel to the a-axis. Ca-clinoptilolite comprises approximately 90 % of the studied zeolite tuff while the rest 10 % is the amorphous phase. The overall cation exchange capacity (CEC) amounts to 187 mmolM + / 100 g, and calcium represents the most abundant cation in the studied sample. The atomic ratios of Si/Al, Na + /(Na + +K + ), and Ca 2+ /(Ca 2+ +Mg 2+ ) are as follows: 4.36, 0.14, and 0.55, respectively. The zeolite tuff is both thermally and structurally stable and has applications in various areas of industry and agriculture. © 2018, Association of Chemists and Chemical Engineers of Serbia. All rights reserved.
dc.publisherAssociation of the Chemical Engineers of Serbia
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45012/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176016/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/34013/RS//
dc.rightsopenAccess
dc.sourceHemijska Industrija
dc.subjectcrystal structure
dc.subjectthermal stability
dc.subjectX-ray powder diffraction
dc.subjectzeolitic tuff
dc.titleMineraloške i kristalografske osobine zeolitskog tufa heu-tipa lokaliteta novaković, Bosna i Hercegovina
dc.title.alternativeMineralogy and crystallographic properties of heu-type zeolitic tuff from the novakovic deposit, Bosnia and Herzegovina
dc.typearticleen
dc.rights.licenseBY-NC-ND
dcterms.abstractСтојановић, Јовица Н.; Сокић, Мирослав Д.; Марковић, Бранислав Р.; Митић, Војислав В.; Радосављевић-Михајловић, Aна С.; Даковић, Aлександра С.; Кашић, Владан; Минералошке и кристалографске особине зеолитског туфа хеу-типа локалитета новаковић, Босна и Херцеговина;
dc.citation.spage371
dc.citation.epage382
dc.citation.volume72
dc.citation.issue6
dc.identifier.wos000454433300006
dc.identifier.doi10.2298/HEMIND180725026R
dc.identifier.scopus2-s2.0-85062948440
dc.type.versionpublishedVersion
dc.identifier.fulltexthttp://dais.sanu.ac.rs/bitstream/id/16576/Radosavljevic-Mihajlovic_Hemijska-industrija_2018.pdf


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