<div class="csl-bib-body">
<div class="csl-entry">Dordevic, T., Vacek, K., Stöger-Pollach, M., & Gomez Gonzalez, M. A. (2026, May 21). <i>Nano-mineralogical controls on antimony resource potential in mine wastes of North Macedonia</i> [Conference Presentation]. Joint Meeting Japan Geoscience Union and American Geophysical Union (JpGU-AGU 2026), Tokyo, Japan. http://hdl.handle.net/20.500.12708/228629</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/228629
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dc.description.abstract
Antimony (Sb) is a critical raw material essential for modern technologies, including energy storage, photovoltaics, and flame retardants, yet its primary supply is increasingly constrained. Secondary sources, particularly legacy mine wastes, represent an important but underexplored unconventional resource that may contribute to sustainable raw material supply while reducing environmental risk. North Macedonia hosts several former Sb-rich mining districts, where large volumes of mine waste remain exposed to ongoing weathering and element redistribution. This study investigates the resource potential of Sb in mine wastes from the Lojane Sb-As-Cr mine (Dordevic et al. 2019; Serafimovski et al. 2023) and the Allchar, Sb-As-Tl-Au polymetallic deposit (Vanek et al. 2024), with implications for future exploration at Krstov Dol, former Sb-mine. These sites contain substantial quantities of Sb hosted both in primary sulfides such as stibnite, as well as in secondary Sb-minerals (mostly Sb-oxides and mixed Fe- and Ca-Sb-oxides) formed during post-mining alteration. However, the nanoscale distribution, speciation, and stability of Sb within these materials remain poorly constrained, limiting reliable assessment of their recovery potential. To address this, a multi-scale mineralogical approach was applied, combining scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS), Raman spectroscopy, nano-focused X-ray fluorescence (nano-XRF) and transmission electron microscopy (TEM). Nano-mineralogical analyses reveal that besides primary ore minerals Sb is also concentrated in secondary phases, including Sb-oxides, Sb-rich Fe-oxides, roméite-group minerals, and amorphous nanoparticulate assemblages. These nanoscale phases act as both sinks and potential sources of Sb, controlling its environmental mobility and influencing its technical recoverability. Furthermore, weathering processes promote localized Sb enrichment in fine-grained fractions, increasing the potential economic value of mine waste materials. The results demonstrate that mine wastes in North Macedonia represent significant unconventional Sb resources, where mineralogical controls at the nano-scale govern both environmental behavior and resource potential. These findings contribute to the development of resource-efficient strategies aligned with circular economy principles and highlight the importance of advanced mineralogical characterization for future exploration, including emerging targets such as Krstov Dol.
en
dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.language.iso
en
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dc.subject
Nano-mineralogical controls
en
dc.subject
mine wastes
en
dc.subject
nano-minerals
en
dc.subject
secondary resources
en
dc.subject
antomony
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dc.title
Nano-mineralogical controls on antimony resource potential in mine wastes of North Macedonia
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
University of Vienna, Austria
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dc.contributor.affiliation
Diamond Light Source, United Kingdom of Great Britain and Northern Ireland (the)
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dc.relation.grantno
P 36828-N
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dc.type.category
Conference Presentation
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tuw.project.title
817B_Tl nano-minerals and their environmental significance
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tuw.researchinfrastructure
Universitäre Service-Einrichtung für Transmissionselektronenmikroskopie
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
E6
-
tuw.researchTopic.id
E5
-
tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Sustainable Production and Technologies
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tuw.researchTopic.name
Efficient Utilisation of Material Resources
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tuw.researchTopic.value
50
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tuw.researchTopic.value
35
-
tuw.researchTopic.value
15
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tuw.publication.orgunit
E057-02 - Fachbereich Universitäre Serviceeinrichtung für Transmissions- Elektronenmikroskopie
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tuw.publication.orgunit
E138 - Institut für Festkörperphysik
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tuw.author.orcid
0000-0003-0429-2584
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tuw.author.orcid
0000-0002-5450-4621
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tuw.author.orcid
0000-0003-2725-4820
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tuw.event.name
Joint Meeting Japan Geoscience Union and American Geophysical Union (JpGU-AGU 2026)
en
tuw.event.startdate
24-05-2026
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tuw.event.enddate
29-05-2026
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Tokyo
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tuw.event.country
JP
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tuw.event.presenter
Dordevic, Tamara
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tuw.event.track
Single Track
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wb.sciencebranch
Geologie, Mineralogie
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1051
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wb.sciencebranch.oefos
1030
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wb.sciencebranch.value
50
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wb.sciencebranch.value
50
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item.grantfulltext
restricted
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.cerifentitytype
Publications
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item.fulltext
no Fulltext
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crisitem.project.funder
FWF - Österr. Wissenschaftsfonds
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crisitem.project.grantno
P 36828-N
-
crisitem.author.dept
E057-02 - Fachbereich Universitäre Serviceeinrichtung für Transmissions- Elektronenmikroskopie
-
crisitem.author.dept
University of Vienna, Austria
-
crisitem.author.dept
E057-02 - Fachbereich Universitäre Serviceeinrichtung für Transmissions- Elektronenmikroskopie
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crisitem.author.dept
Diamond Light Source, United Kingdom of Great Britain and Northern Ireland (the)
