Articles | Volume 36, issue 1
https://doi.org/10.5194/ejm-36-31-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-36-31-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Thermodynamics of vivianite-group arsenates M3(AsO4)2 ⋅ 8H2O (M is Ni, Co, Mg, Zn, Cu) and chemical variability in the natural arsenates of this group
Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749 Jena, Germany
Anna Reichstein
Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749 Jena, Germany
Patrick Haase
Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749 Jena, Germany
Martin Števko
Earth Science Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 840 05 Bratislava, Slovakia
Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Prague 9 – Horní Počernice, Czech Republic
Jiří Sejkora
Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Prague 9 – Horní Počernice, Czech Republic
Edgar Dachs
Department of Chemistry and Physics of Materials, University of Salzburg, Jakob-Haringer-Strasse 2a, 5020 Salzburg, Austria
Related authors
Khulan Berkh, Juraj Majzlan, Jeannet A. Meima, Jakub Plášil, and Dieter Rammlmair
Eur. J. Mineral., 35, 737–754, https://doi.org/10.5194/ejm-35-737-2023, https://doi.org/10.5194/ejm-35-737-2023, 2023
Short summary
Short summary
Since As is detrimental to the environment, the As content of ores should be reduced before it is released into the atmosphere through a smelting process. Thus, Raman spectra of typical As minerals were investigated, and these can be used in the industrial removal of As-rich ores prior to the ore beneficiation. An additional objective of our study was an investigation of the secondary products of enargite weathering. They play a decisive role in the release or retainment of As in the waste form.
Juraj Majzlan, Alexandra Plumhoff, Martin Števko, Gwladys Steciuk, Jakub Plášil, Edgar Dachs, and Artur Benisek
Eur. J. Mineral., 35, 157–169, https://doi.org/10.5194/ejm-35-157-2023, https://doi.org/10.5194/ejm-35-157-2023, 2023
Short summary
Short summary
This research was done to understand how toxic elements, such as copper or arsenic, move through the environment. The data presented here can be used to model mobility of such elements and to improve remediation strategies at sites contaminated by mining.
Patrick Haase, Stefan Kiefer, Kilian Pollok, Petr Drahota, and Juraj Majzlan
Eur. J. Mineral., 34, 493–506, https://doi.org/10.5194/ejm-34-493-2022, https://doi.org/10.5194/ejm-34-493-2022, 2022
Short summary
Short summary
Stannite decomposition leads to the precipitation of an amorphous and metastable Sn–Fe–As-rich phase. With ageing, goethite and cassiterite crystallize from the precursor and mark the end of the weathering cycle. Other elements are lost in the initial stage of weathering (e.g. Zn, S) or after full oxidation of the sulfidic material (e.g. Cu, Ag). Electron microprobe (EMP) and transmission electron microscopy (TEM) analyses were performed to witness the mobility of the released elements.
Juraj Majzlan, Stefan Kiefer, Kristina Lilova, Tamilarasan Subramani, Alexandra Navrotsky, Edgar Dachs, and Artur Benisek
Eur. J. Mineral., 33, 357–371, https://doi.org/10.5194/ejm-33-357-2021, https://doi.org/10.5194/ejm-33-357-2021, 2021
Short summary
Short summary
Chapmanite is a seemingly rare mineral, a silicate of the elements iron and antimony. In this work, we evaluated how stable and how soluble this mineral is. The goal was to determine if this mineral can store the toxic element antimony. Our results show that it is possible, but its formation in nature is hindered and slow. Yet, in some special environments, it could store and keep antimony over longer time.
Alexandra M. Plumhoff, Jakub Plášil, Edgar Dachs, Artur Benisek, Jiří Sejkora, Martin Števko, Mike S. Rumsey, and Juraj Majzlan
Eur. J. Mineral., 32, 285–304, https://doi.org/10.5194/ejm-32-285-2020, https://doi.org/10.5194/ejm-32-285-2020, 2020
Aileen Meier, Anne Kastner, Dennis Harries, Maria Wierzbicka-Wieczorek, Juraj Majzlan, Georg Büchel, and Erika Kothe
Biogeosciences, 14, 4867–4878, https://doi.org/10.5194/bg-14-4867-2017, https://doi.org/10.5194/bg-14-4867-2017, 2017
Short summary
Short summary
Biomineralization of (magnesium) calcite and vaterite by bacterial isolates was observed using isolates from limestone associated groundwater, rock and soil. More than 92 % of isolates could form carbonates with different crystal macromorphologies. Using different conditions like varying temperature, pH or media components but also cocultivation to test for collaborative effects of sympatric bacteria, mechanisms of calcium carbonate formation were studied.
E. Schütze, A. Weist, M. Klose, T. Wach, M. Schumann, S. Nietzsche, D. Merten, J. Baumert, J. Majzlan, and E. Kothe
Biogeosciences, 10, 3605–3614, https://doi.org/10.5194/bg-10-3605-2013, https://doi.org/10.5194/bg-10-3605-2013, 2013
Khulan Berkh, Juraj Majzlan, Jeannet A. Meima, Jakub Plášil, and Dieter Rammlmair
Eur. J. Mineral., 35, 737–754, https://doi.org/10.5194/ejm-35-737-2023, https://doi.org/10.5194/ejm-35-737-2023, 2023
Short summary
Short summary
Since As is detrimental to the environment, the As content of ores should be reduced before it is released into the atmosphere through a smelting process. Thus, Raman spectra of typical As minerals were investigated, and these can be used in the industrial removal of As-rich ores prior to the ore beneficiation. An additional objective of our study was an investigation of the secondary products of enargite weathering. They play a decisive role in the release or retainment of As in the waste form.
Juraj Majzlan, Alexandra Plumhoff, Martin Števko, Gwladys Steciuk, Jakub Plášil, Edgar Dachs, and Artur Benisek
Eur. J. Mineral., 35, 157–169, https://doi.org/10.5194/ejm-35-157-2023, https://doi.org/10.5194/ejm-35-157-2023, 2023
Short summary
Short summary
This research was done to understand how toxic elements, such as copper or arsenic, move through the environment. The data presented here can be used to model mobility of such elements and to improve remediation strategies at sites contaminated by mining.
Patrick Haase, Stefan Kiefer, Kilian Pollok, Petr Drahota, and Juraj Majzlan
Eur. J. Mineral., 34, 493–506, https://doi.org/10.5194/ejm-34-493-2022, https://doi.org/10.5194/ejm-34-493-2022, 2022
Short summary
Short summary
Stannite decomposition leads to the precipitation of an amorphous and metastable Sn–Fe–As-rich phase. With ageing, goethite and cassiterite crystallize from the precursor and mark the end of the weathering cycle. Other elements are lost in the initial stage of weathering (e.g. Zn, S) or after full oxidation of the sulfidic material (e.g. Cu, Ag). Electron microprobe (EMP) and transmission electron microscopy (TEM) analyses were performed to witness the mobility of the released elements.
Juraj Majzlan, Stefan Kiefer, Kristina Lilova, Tamilarasan Subramani, Alexandra Navrotsky, Edgar Dachs, and Artur Benisek
Eur. J. Mineral., 33, 357–371, https://doi.org/10.5194/ejm-33-357-2021, https://doi.org/10.5194/ejm-33-357-2021, 2021
Short summary
Short summary
Chapmanite is a seemingly rare mineral, a silicate of the elements iron and antimony. In this work, we evaluated how stable and how soluble this mineral is. The goal was to determine if this mineral can store the toxic element antimony. Our results show that it is possible, but its formation in nature is hindered and slow. Yet, in some special environments, it could store and keep antimony over longer time.
Simon Philippo, Frédéric Hatert, Yannick Bruni, Pietro Vignola, and Jiří Sejkora
Eur. J. Mineral., 32, 449–455, https://doi.org/10.5194/ejm-32-449-2020, https://doi.org/10.5194/ejm-32-449-2020, 2020
Short summary
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Luxembourgite, ideally AgCuPbBi4Se8, is a new selenide discovered at Bivels, Grand Duchy of Luxembourg. The mineral forms tiny fibres deposited on dolomite crystals. Its crystal structure is similar to those of litochlebite and watkinsonite, and can be described as an alternation of two types of anionic layers: a pseudotetragonal layer four atoms thick and a pseudohexagonal layer one atom thick. The species named for the city of Luxembourg, close to its locality of discovery.
Alexandra M. Plumhoff, Jakub Plášil, Edgar Dachs, Artur Benisek, Jiří Sejkora, Martin Števko, Mike S. Rumsey, and Juraj Majzlan
Eur. J. Mineral., 32, 285–304, https://doi.org/10.5194/ejm-32-285-2020, https://doi.org/10.5194/ejm-32-285-2020, 2020
Aileen Meier, Anne Kastner, Dennis Harries, Maria Wierzbicka-Wieczorek, Juraj Majzlan, Georg Büchel, and Erika Kothe
Biogeosciences, 14, 4867–4878, https://doi.org/10.5194/bg-14-4867-2017, https://doi.org/10.5194/bg-14-4867-2017, 2017
Short summary
Short summary
Biomineralization of (magnesium) calcite and vaterite by bacterial isolates was observed using isolates from limestone associated groundwater, rock and soil. More than 92 % of isolates could form carbonates with different crystal macromorphologies. Using different conditions like varying temperature, pH or media components but also cocultivation to test for collaborative effects of sympatric bacteria, mechanisms of calcium carbonate formation were studied.
E. Schütze, A. Weist, M. Klose, T. Wach, M. Schumann, S. Nietzsche, D. Merten, J. Baumert, J. Majzlan, and E. Kothe
Biogeosciences, 10, 3605–3614, https://doi.org/10.5194/bg-10-3605-2013, https://doi.org/10.5194/bg-10-3605-2013, 2013
Related subject area
Crystal chemistry
Crystal chemistry of Belgian ardennites
Evidence of the existence of the As4S6 molecule produced by light exposure of alacranite, As8S9
Incorporation and substitution of ions and H2O in the structure of beryl
Crystal chemistry and molar volume of potassic-chloro-hastingsite
Pilanesbergite: a new rock-forming mineral occurring in nepheline syenite from the Pilanesberg Alkaline Complex, South Africa
Trace and ultratrace elements in spinel subgroup minerals of ultramafic rocks from the Voltri Massif (NW Italy): the influence of microstructure and texture
Genetic model for the color anomalies at the termination of pegmatitic gem tourmaline crystals from the island of Elba, Italy
Fe-bearing vanadium dioxide–paramontroseite: structural details and high-temperature transformation
Cation and anion ordering in synthetic lepidolites and lithian muscovites: influence of the OH ∕ F and Li ∕ Al ratios on the mica formation studied by NMR (nuclear magnetic resonance) spectroscopy and X-ray diffraction
Tin weathering experiment set by nature for 300 years: natural crystals of the anthropogenic mineral hydroromarchite from Creussen, Bavaria, Germany
New secondary phosphate mineral occurrences and their crystal chemistry, at the Hagendorf Süd pegmatite, Bavaria
Na-feldspar: temperature, pressure and the state of order
Martin Depret, Frédéric Hatert, Michel Blondieau, Stéphane Puccio, Muriel M. L. Erambert, Fabrice Dal Bo, and Florent Bomal
Eur. J. Mineral., 36, 687–708, https://doi.org/10.5194/ejm-36-687-2024, https://doi.org/10.5194/ejm-36-687-2024, 2024
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Ardennite is a rare Mn-rich aluminosilicate that was originally described in Salmchâteau, Belgium. In the last few years, new samples of ardennites have been found at several localities close to Salmchâteau. These samples were analysed by electron microprobe, single-crystal X-ray diffraction, and infrared spectroscopy. The results given in this paper allow us to identify the main substitution mechanisms that occur in Belgian ardennites and to discuss the nomenclature of the ardennite group.
Luca Bindi, Paola Bonazzi, Laura Chelazzi, Matteo M. N. Franceschini, Giovanni O. Lepore, Marta Morana, Giovanni Pratesi, Alice Taddei, Matteo Zoppi, and Silvio Menchetti
Eur. J. Mineral., 36, 615–622, https://doi.org/10.5194/ejm-36-615-2024, https://doi.org/10.5194/ejm-36-615-2024, 2024
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The As4S6 molecule was missing in the reported structures of crystalline As chalcogenides. Here we report the first occurrence of the As4S6 molecule together with the other known As4Sn (n = 3, 4, 5) molecules randomly replacing each other in the crystalline structure of a new monoclinic product obtained by the light-induced alteration of the mineral alacranite, As8S9.
Carina Silke Hanser, Tobias Häger, and Roman Botcharnikov
Eur. J. Mineral., 36, 449–472, https://doi.org/10.5194/ejm-36-449-2024, https://doi.org/10.5194/ejm-36-449-2024, 2024
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The structure of beryl has been a topic of research for decades but is still not entirely understood. This especially applies to substitutions by Fe ions and the occupation of the channels of beryl by H2O and alkalis. The growing amount of studies makes it difficult to gain an overview on these topics. Therefore, this article reviews the current consensus and debates found in the literature.
Jared P. Matteucci, David M. Jenkins, and M. Darby Dyar
Eur. J. Mineral., 36, 247–266, https://doi.org/10.5194/ejm-36-247-2024, https://doi.org/10.5194/ejm-36-247-2024, 2024
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To explore the compositional constraints on Cl incorporation into amphiboles, which can be used to characterize transient brines, amphiboles were synthesized with a broad range of Cl concentrations. Amphibole Cl was found to be dependent on the Fe2+,3+ content, but not the tetrahedral Al content or K / Na ratio. Cl incorporation was found to contract the unit cell along a and expand it along b and c. Molar volumes were derived for endmember Cl-amphiboles using multivariate regressions.
Fabrice Dal Bo, Henrik Friis, Marlina A. Elburg, Frédéric Hatert, and Tom Andersen
Eur. J. Mineral., 36, 73–85, https://doi.org/10.5194/ejm-36-73-2024, https://doi.org/10.5194/ejm-36-73-2024, 2024
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We report the description and the characterization of a new mineral species, found in a rock sample from the geological formation called the Pilanesberg Complex, South Africa. This is a silicate mineral that contains a significant amount of sodium, calcium, iron, titanium and fluorine. Its atomic structure shows that it is related to other wöhlerite-group minerals. This work provides new insights into the crystallization conditions that ruled the formation of the Pilanesberg complex.
Silvia Fornasaro, Paola Comodi, Laura Crispini, Sandro Zappatore, Azzurra Zucchini, and Pietro Marescotti
Eur. J. Mineral., 35, 1091–1109, https://doi.org/10.5194/ejm-35-1091-2023, https://doi.org/10.5194/ejm-35-1091-2023, 2023
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Using an innovative multi-analytical approach, we investigated the trace elements composition of spinel-group minerals in different ultramafic rocks from the Voltri Massif (Central Liguria, NW Italy). The knowledge of the trace elements within these minerals has an interesting implication both in petrological, mineralogical, and geochemical studies as well as environmental fields, since these elements can be potentially toxic and released into the environment during weathering processes.
Alessandra Altieri, Federico Pezzotta, Giovanni B. Andreozzi, Henrik Skogby, and Ferdinando Bosi
Eur. J. Mineral., 35, 755–771, https://doi.org/10.5194/ejm-35-755-2023, https://doi.org/10.5194/ejm-35-755-2023, 2023
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Elba tourmaline crystals commonly display a sharp transition to dark colors at the analogous termination, but the mechanisms leading to the formation of such terminations are unclear. Here we propose a general genetic model in which, as a consequence of a pocket rupture event, chemical alteration of early formed Fe-/Mn-rich minerals in the enclosing pegmatite was responsible for the release of Fe and/or Mn in the geochemical system, allowing the formation of the late-stage dark terminations.
Nadia Curetti and Alessandro Pavese
Eur. J. Mineral., 35, 373–382, https://doi.org/10.5194/ejm-35-373-2023, https://doi.org/10.5194/ejm-35-373-2023, 2023
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Paramontroseite is a V dioxide (a = 4.8960(14) Å, b = 9.395(3) Å, c = 2.9163(5) Å, V = 134.14(6) Å3; space group Pbnm). The sample under investigation (Prachovice mine, Czech Republic) bears 20 wt % of Fe2O3, and the Fe atoms occupy tetrahedral sites arranged in the
emptychannel along z. Thermal expansion is anisotropic. At T > 350 °C, paramontroseite decomposes and two new phases form: V2O5 (V-pentoxide) and V4Fe2O13 (Fe-tetrapolyvanadate).
Lara Sulcek, Bernd Marler, and Michael Fechtelkord
Eur. J. Mineral., 35, 199–217, https://doi.org/10.5194/ejm-35-199-2023, https://doi.org/10.5194/ejm-35-199-2023, 2023
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Synthetic lepidolites and Li-muscovites were characterised by nuclear magnetic resonance (NMR) spectroscopy and X-ray diffraction. Both Li and F / OH content influence the occurrence of the impurity phases. A solid solution series exists for lepidolites with polylithionite and trilithionite as endmembers but does not between trilithionite and muscovite. NMR investigations indicate there is a preference for incorporating fluorine and OH groups near Li-rich and Al-rich environments, respectively.
Natalia Dubrovinskaia, Maria Messingschlager, and Leonid Dubrovinsky
Eur. J. Mineral., 34, 563–572, https://doi.org/10.5194/ejm-34-563-2022, https://doi.org/10.5194/ejm-34-563-2022, 2022
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In this work we report a new locality for the rare mineral hydroromarchite, Sn3O2(OH)2. It was found not in a submarine environment but in soil at the Saint James Church archaeological site in Creussen, Germany. A tin artefact (a tin button) was exposed to weathering in soil for about 300 years. We solved and refined its structure based on single-crystal X-ray diffraction analysis.
Erich Keck, Ian E. Grey, Colin M. MacRae, Stephanie Boer, Rupert Hochleitner, Christian Rewitzer, William G. Mumme, A. Matt Glenn, and Cameron Davidson
Eur. J. Mineral., 34, 439–450, https://doi.org/10.5194/ejm-34-439-2022, https://doi.org/10.5194/ejm-34-439-2022, 2022
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First occurrences of the secondary phosphate minerals kenngottite, Mn32+Fe43+(PO4)4(OH)6(H2O)2; allanpringite, Fe33+(PO4)2(OH)3·5H2O; iangreyite, Ca2Al7(PO4)2(PO3OH)2(OH,F)15·8H2O; and nizamoffite, MnZn2(PO4)2(H2O)4, from the Hagendorf Süd pegmatite are reported, with characterisation of their crystal chemistry and phase associations.
Herbert Kroll, Hans Ulrich Bambauer, and Horst Pentinghaus
Eur. J. Mineral., 32, 427–441, https://doi.org/10.5194/ejm-32-427-2020, https://doi.org/10.5194/ejm-32-427-2020, 2020
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Feldspars constitute about 60 % of the earth's crust. Na-feldspar, Na[AlSi3O8], is central to this mineral group. Its structural response to changing conditions of temperature and pressure is complicated. In particular, this applies to the distribution of Al and Si on the atomic sites of its crystal structure. We clarify how this distribution varies in thermodynamic equilibrium with external conditions and provide procedures that allow easy determination of the atomic distribution.
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Short summary
Minerals formed by weathering of toxic materials, of either natural or human origin, act as storage containers for toxic elements. In this work, we investigated properties of common minerals which store and release arsenic in the environment. The data presented here will allow for improved modeling of the polluted sites and for better remediation strategies that could be applied to minimize the impact of the pollution on the environment.
Minerals formed by weathering of toxic materials, of either natural or human origin, act as...