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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bindi, Luca
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Crystallographic insights into monovalent thallium incorporation: Exploring hydropyrochlore structure for environmental remediation
- 2024Toledoite, TiFeSi, a New Mineral from Inclusions in Corundum Xenocrysts from Mount Carmel, Israelcitations
- 2023Thunderstruck! A quasicrystal made by lightning
- 2023A new layered potassium-based molybdenum–tungsten monophosphate: synthesis, crystal structure, XPS and magnetic studiescitations
- 2023Al‐Cu‐Fe alloys in the solar system: Going inside a Khatyrka‐like micrometeorite (KT01) from the Nubian desert, Sudancitations
- 2022Critical assessment of pressure estimates in volcanic plumbing systemscitations
- 2021Cr2O3 in corundumcitations
- 2021Role of spacer cations and structural distortion in two-dimensional germanium halide perovskitescitations
- 2020Kishonite, VH2, and Oreillyite, Cr2N, two new minerals from the corundum xenocrysts of Mt Carmel, Northern Israelcitations
- 2020Tsikourasite, Mo3Ni2P1+x (x < 0.25), a New Phosphide from the Chromitite of the Othrys Ophiolite, Greececitations
- 2019Dellagiustaitecitations
- 2018Carmeltazite, ZrAl2Ti4O11, a new mineral trapped in corundum from volcanic rocks of Mt Carmel, Northern Israelcitations
- 2016Ciriottiite, Cu(Cu,Ag)3Pb19(Sb,As)22(As2)S56, the Cu-analogue of sterryite from the Tavagnasco mining district, Piedmont, Italycitations
- 2016Ferrostalderite, CuFe2TlAs2S6, a new mineral from Lengenbach, Switzerland: Occurrence, crystal structure, and emphasis on the role of iron in sulfosaltscitations
- 2015Ralphcannonite, AgZn2TlAs2S6, a new mineral of the routhierite isotypic series from Lengenbach, Binn Valley, Switzerlandcitations
- 2014Lead-antimony sulfosalts from Tuscany (Italy). XVI. Carducciite, (AgSb)Pb6(As,Sb)8S20, a new Sb-rich derivative of rathite from the Pollone mine, Valdicastello Carducci: Occurrence and crystal structurecitations
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article
Dellagiustaite
Abstract
<p>Dellagiustaite, ideally Al<sub>2</sub>V<sup>2+</sup>O<sub>4</sub>, is anew spinel-group mineral from Sierra de Comechingones, San Luis,Argentina, where it is found associated with hibonite (containingtubular inclusions, 5–100 μm, of metallic vanadium), grossite, and twoother unknown phases with ideal stoichiometry of Ca<sub>2</sub>Al<sub>3</sub>O<sub>6</sub>F and Ca<sub>2</sub>Al<sub>2</sub>SiO<sub>7</sub>.A very similar rock containing dellagiustaite has been found at MtCarmel (northern Israel), where super-reduced mineral assemblages havecrystallized from high-T melts trappedin corundum aggregates (micro-xenoliths) within picritic-tholeiiticlavas ejected from Cretaceous volcanoes. In the holotype, euhedralgrains of dellagiustaite are found as inclusions in grossite. Theempirical average chemical formula of dellagiustaite is (Al<sub>1.09</sub>V2+0.91V3+0.87Mg<sub>0.08</sub> Ti3+0.04Mn<sub>0.01</sub>)<sub>Σ3</sub>O<sub>4</sub>, but it may show limited replacement of V<sup>2+</sup> by Mg and of V<sup>3+</sup> by Al. As Al is the dominant trivalent cation, the ideal formula is Al<sub>2</sub>V<sup>2+</sup>O<sub>4</sub> according to the current IMA rules. Dellagiustaite shows the usual space group of spinel-group minerals (Fd 3¯ m, R<sub>1</sub> = 1.46%) with a = 8.1950(1) Å. The observed mean bond lengths <T–O> = 1.782(2) Å and <M–O> = 2.0445(9) Å, the observed site scattering (T = 13.3 eps, M = 22.5 eps), and the chemical composition show that dellagiustaite is an inverse spinel: T tetrahedra are occupied by Al<sup>3+</sup>, whereas M octahedra are occupied by V<sup>2+</sup> and V<sup>3+</sup>, leading to the site assignment as <sup>T</sup>Al<sup>M</sup>( V2+0.91V3+0.88Al3+0.09Mg<sub>0.08</sub> Ti3+0.03Mn<sub>0.01</sub>)O<sub>4.</sub></p>