Discovery of terrestrial andreyivanovite, FeCrP, and the effect of Cr and V substitution in barringerite-allabogdanite low-pressure transition

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dc.contributor.authorGaluskin, Evgeny
dc.contributor.authorKusz, Joachim
dc.contributor.authorGaluskina, Irina
dc.contributor.authorKsiążek, Maria
dc.contributor.authorVapnik, Yevgeny
dc.contributor.authorZieliński, Grzegorz
dc.contributor.organizationFaculty of Natural Sciences, University of Silesia, Sosnowiec, Poland
dc.contributor.organizationFaculty of Science and Technology, University of Silesia, Chorzów, Poland
dc.contributor.organizationDepartment of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
dc.contributor.organizationMicro-Area Analysis Laboratory, Polish Geological Institute—National Research Institute, Warsaw, Poland
dc.date.accessioned2025-02-26T14:09:25Z
dc.date.available2025-02-26T14:09:25Z
dc.date.issued2022
dc.description.abstractIron phosphides with significant variations of Cr (up to 18 wt.%) and V (up to 8.6 wt.%) content were detected in gehlenite-bearing breccia at the Hatrurim Complex, Negev desert, Israel. Investigations of composition and structure of the Fe2P phosphides showed that when V+Cr content is higher than 0.26 apfu (atom per formula unite), a transition from the hexagonal barringerite (P-62m) to orthorhombic allabogdanite (Pnma) takes place. According to the experimental data, allabogdanite is a high-pressure (>8GP) polymorph of barringerite. Pseudowollastonite associated with Cr-V-bearing allabogdanite is an indicator of phosphide crystallization at a high temperature (>1200C) and low pressure. Thus, at the low pressure close to ambient, when more than 13 at.% Fe in Fe2P is substituted by Cr and V, the orthorhombic polymorph is stable. The orthorhombic phosphide with the highest Cr and V contents belongs to andreyivanovite species with the FeCrP end-member formula. This is the first finding on Earth of that very rare mineral described from the Kaidun meteorite. Some Cr-V-bearing phosphides have an unusual morphology, which cannot be explained by crystallization from a melt. More probably, these phosphides can form in the process of replacing fish bone remains. We believe that sedimentary protolith was not thermally altered and contained a significant amount of bituminous organic matter and phosphorite inclusions. Injecting paralava into the sedimentary rocks determines the conditions for phosphide formation on the boundary of these rocks as a result of the high-temperature carbothermal reduction process.en
dc.description.sponsorshipNational Science Centre (NCN) of Poland, grant no. 2021/41/B/ST10/00130
dc.identifier.citationGaluskin, E.V., Kusz, J., Galuskina, I.O., Książek, M., Vapnik, Y. and Zieliński, G. (2023b) Discovery of terrestrial andreyivanovite, FeCrP, and the effect of Cr and V substitution on the low-pressure barringerite-allabogdanite transition. American Mineralogist, 108, 1506–1515.
dc.identifier.doi10.2138/am-2022-8647
dc.identifier.issn1945-3027
dc.identifier.urihttps://open.icm.edu.pl/handle/123456789/25467
dc.language.isoen_US
dc.publisherMineralogical Society of America
dc.relation.ispartofseries108; 8
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Międzynarodoween
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceAmerican Mineralogist
dc.subjectterrestrial natural phosphidesen
dc.subjectbarringeriteen
dc.subjectallabogdaniteen
dc.subjectandreyivanoviteen
dc.subjectphase transitionen
dc.subjectHatrurim Complexen
dc.titleDiscovery of terrestrial andreyivanovite, FeCrP, and the effect of Cr and V substitution in barringerite-allabogdanite low-pressure transitionen
dc.typearticle
dc.type.versionacceptedVersion
person.identifier.orcidGaluskin, Evgeny [0000-0002-7018-527X]
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