Chemical and mineralogical characterization of volcanic glass (perlite) from Republic of Macedonia

Reka, Arianit and Pavlovski, Blagoj and Boev, Blazo and Boev, Ivan and Rexhepi, Leonora and Makreski, Petre (2018) Chemical and mineralogical characterization of volcanic glass (perlite) from Republic of Macedonia. In: 17th Serbian Geological Congress, 17-20 May 2018, Vrnjacka Banja, Serbia.

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Abstract

Characterization of the volcanic glass (perlite) from Bitola region (Republic of Macedonia) was performed by the chemical, XRPD, IR and SEM analyses. The chemical analysis shows that the volcanic glass (perlite) represents an acidic volcanic rock with high percentage of SiO2 (72.45%), high percentage of alkali metal oxides (4.21% K2O, 3.56 % Na2O), and loss on ignition 3.54%. Results of the XRPD analyses indicate the presence of the amorphous phase with small presence of crystalline phases (feldspars, quartz, cristobalite and magnetite). SEM examinations point to the glassy structure with presence of pores with 50-100 μm in size.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: perlite, volcanic rocks, X-ray, SEM
Subjects: Natural sciences > Earth and related environmental sciences
Natural sciences > Other natural sciences
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Biljana Kosturanova
Date Deposited: 09 Jul 2018 08:42
Last Modified: 09 Jul 2018 08:42
URI: https://eprints.ugd.edu.mk/id/eprint/20226

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