Analcime-bearing tuffs from Bosnia and Herzegovina: mineralogy and structure data

The mineralogical and structural properties of the analcime-bearing rocks from Milići (Bosnia and Herzegovina) have been investigated in this work. The analyzed tuff samples, enriched in natural analcime, were characterized through microscopic, DTA/TGA, SEM, and X-ray powder diffraction analysis. Th...

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Bibliographic Details
Published in:Arabian journal of geosciences 2023, Vol.16 (10), Article 543
Main Authors: Radosavljević-Mihajlović, Ana, Radulović, Dragan, Kasić, Vladan, Vuković, Nikola, Stojanović, Jovica, Radosavljevic, Slobodan
Format: Article
Language:English
Subjects:
Analcime
Apatite
Biotite
Carbonates
Differential thermal analysis
Earth and Environmental Science
Earth science
Earth Sciences
Feldspars
Fossils
Mineralogy
Original Paper
Parameters
Plant fossils
Quartz
Rietveld method
Rock
Rocks
Rutile
Tuff
Unit cell
Vegetal fossils
Volcanic glass
X ray powder diffraction
Zircon
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Summary:The mineralogical and structural properties of the analcime-bearing rocks from Milići (Bosnia and Herzegovina) have been investigated in this work. The analyzed tuff samples, enriched in natural analcime, were characterized through microscopic, DTA/TGA, SEM, and X-ray powder diffraction analysis. The mineralogical composition of the analcime-bearing rocks consists of analcime, quartz, feldspars, mica, carbonates, volcanic glass, zircon, apatite, rutile, and plant fossils. Quantitative XRD analysis shows that the most abundant mineral is analcime. The representative composite sample of analcime-bearing rocks was refined on tetragonal (I41/acd) unit-cell parameters. Tetragonal unit-cell parameters of analcime yielded the best refinement agreement factors ( a = 13.7097 (3), c = 13.6953 (4) Å, V = 2571.32 (5) Ǻ3 – Rw = 14.2, Rp = 12.2, Rexp = 8.7, DW stat. = 1.1, GofF = 1.6). The quantitative amounts of main minerals obtained using the Rietveld method yielded before the following results (wt %): analcime 48.79% ( RB = 5.99, RF = 5.95), sanidine 29.20% ( RB = 2.55, RF = 2.31), biotite 15.99% ( RB = 6.56, RF = 3.94), quartz 6.02% ( RB = 4.86, RF = 4.63).
ISSN:1866-7511
1866-7538
DOI:10.1007/s12517-023-11604-w