Chemical, mineralogical and structural features of native and expanded perlite from Macedonia

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dc.authoridOral, Ayhan/0000-0003-4965-8754
dc.authoridReka, Arianit/0000-0002-6419-2270
dc.authoridBoev, Ivan/0000-0001-9401-7476
dc.authoridRistova Delipetrev, Maja/0009-0005-9718-8568
dc.authoridMakreski, Petre/0000-0003-0662-5995
dc.authoridESKIZEYBEK, VOLKAN/0000-0002-5373-0379
dc.contributor.authorReka, Arianit A.
dc.contributor.authorPavlovski, Blagoj
dc.contributor.authorLisichkov, Kiril
dc.contributor.authorJashari, Ahmed
dc.contributor.authorBoev, Blazo
dc.contributor.authorBoev, Ivan
dc.contributor.authorLazarova, Maja
dc.date.accessioned2025-01-27T21:05:31Z
dc.date.available2025-01-27T21:05:31Z
dc.date.issued2019
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe physico-mechanical, chemical and mineralogical characteristics of volcanic glass (perlite) from the Mariovo region (Macedonia) as well as the mineralogical changes that occur during its thermal treatment were investigated to demonstrate its utilization for industrial use. The native perlite was characterized by chemical analysis, X-ray powder diffraction (XRPD), infrared (IR) spectroscopy, thermal analysis (TGA/DTA), scanning electron microscopy (SEM-EDX), transmission electron microscopy (TEM), and solid- state NMR. The chemical examination suggests that the perlite represents an acidic volcanic rock with a high percentage of SiO2 (72.45%), high in alkali metal oxides (4.21 wt.% K2O, 3.56 wt.% Na2O), with a loss of ignition 3.54 wt.%. Results from the XRPD indicated major amorphous behaviour, with low amounts of feldspars, quartz, and cristobalite. SEM examinations revealed glassy structure with presence of certain pores (dimensions ranging from 50-100 mu m). The determined expansion coefficient was 20 times its original volume. XRPD of expanded perlite compared to the native perlite depicted new intensive peaks of cristobalite. SEM and TEM revealed irregular morphology with broken or ragged edges. On the basis of the chemical and mineralogical composition, the studied perlite is classified as an appropriate material suitable as ceramic flux to lower the sintering temperature.
dc.identifier.doi10.4154/gc.2019.18
dc.identifier.endpage221
dc.identifier.issn1330-030X
dc.identifier.issn1333-4875
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85074384368
dc.identifier.scopusqualityQ2
dc.identifier.startpage215
dc.identifier.urihttps://doi.org/10.4154/gc.2019.18
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27686
dc.identifier.volume72
dc.identifier.wosWOS:000495436600006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherCroatian Geological Survey
dc.relation.ispartofGeologia Croatica
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectperlite
dc.subjectvolcanic rocks
dc.subjectchemical and mineralogical characterization
dc.subjectexpansion coefficient
dc.titleChemical, mineralogical and structural features of native and expanded perlite from Macedonia
dc.typeArticle

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