Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/9729
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dc.contributor.authorallCampostrini, I.; Dipartimento di Chimica - Univerità di Milanoen
dc.contributor.authorallDemartin, F.; Dipartimento di Chimica - Univerità di Milanoen
dc.contributor.authorallCastellano, C.; Dipartimento di Chimica - Università di Milanoen
dc.contributor.authorallRusso, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italiaen
dc.date.accessioned2015-06-03T12:10:35Zen
dc.date.available2015-06-03T12:10:35Zen
dc.date.issued2014en
dc.identifier.urihttp://hdl.handle.net/2122/9729en
dc.description.abstractThe new mineral parascandolaite, isotypic to cubic perovskites, space group Pm3m (no. 221) is the natural analog of the synthetic fluoride KMgF3 and is related to neighborite, NaMgF3. It was found as a volcanic sublimate at Vesuvius volcano on 1944 eruption lava scoria, associated with opal, cerussite, mimetite, phoenicochroite and coulsellite. It occurs as transparent colorless to white cubic crystals up to 0.5 mm in length with vitreous luster. The density measured by flotation in a diiodomethane–toluene mixture is 3.11(1) g/cm3; that calculated from the empirical formula and single-crystal X-ray data is 3.123 g/cm3. The mineral is isotropic with n = 1.395(5) (580 nm). The six strongest reflections in the X-ray powder diffraction pattern are: [dobs in Å(I)(h k l)] 2.001(100)(2 0 0), 2.831(83) (1 1 0), 2.311(78)(1 1 1), 1.415(56)(2 2 0), 1.633(35) (2 1 1) and 1.206(22)(3 1 1). The unit-cell parameter is a = 4.0032(9) Å. The structure was refined to a final R(F) = 0.0149 for 35 independent observed reflections [I > 2σ(I)]. The mineral is named after the Italian mineralogist Antonio Parascandola (1902–1977).en
dc.language.isoEnglishen
dc.publisher.nameSpringer-Verlag Germanyen
dc.relation.ispartofPhysics and chemistry of mineralsen
dc.relation.ispartofseries/41(2014)en
dc.subjectParascandolaiteen
dc.subjectNew mineral speciesen
dc.subjectFumarole sublimateen
dc.subjectPotassium magnesium trifluorideen
dc.subjectCrystal structureen
dc.subjectPotassium magnesium trifluorideen
dc.subjectVesuviusen
dc.titleParascandolaite, KMgF3, a new perovskite-type-fluoride from Vesuviusen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber403-407en
dc.subject.INGV04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrologyen
dc.identifier.doi10.1007/s00269-014-0668-yen
dc.relation.referencesBruker (2001) SMART and SAINT. Bruker AXS Inc., Madison Burns PC, Hawthorne FC, Hofmeister AM, Moret SL (1996) A structural phase transition in K(Mg1−x Cux)F3 perovskite. Phys Chem Miner 23:141–150 Chakhmouradian AR, Ross K, Mitchell RH, Swainson I (2001) The crystal chemistry of synthetic potassium-bearing neighborite (Na1−xKx)MgF3. Phys Chem Miner 28:277–284 Demartin F, Campostrini I, Castellano C, Gramaccioli CM, Russo M (2012) D’ansite-(Mn), Na21Mn2+(SO4)10Cl3, and d’ansite-(Fe) Na21Fe2+(SO4)10Cl3, two new minerals from volcanic fumaroles. Miner Mag 76:2773–2783 DeVries RC, Roy R (1952) Fluoride models for oxide systems of dielectric interest. The systems KF−MgF2 and AgF−ZnF2. J Am Chem Soc 75:2479–2484 Farrugia LJ (1999) WinGX suite for small-molecule single-crystal crystallography. J Appl Cryst 32:837–838 Fulignati P, Marianelli P, Sbrana A (1998) New insights of the thermometamorphic- metasomatic magma chamber shell of the 1944 eruption of Vesuvius. Acta Vulcanol 10(1):47–54.Fulignati P, Marianelli P, Santacroce R, Sbrana A (2000) The skarnshell of the 1944 Vesuvius magma chamber. Genesis and P-T-X conditions from melt and fluid inclusion data. Eur J Miner 12(5):1025–1039 Hermann P, Vandenstatten R, Hubaux A (1960) Sublimés du Nyiragongo (Kivu) Bulletin des Séances de l’Academie Royale des Sciences d’Outre-mer 6:961–971 Hey MH (1963) Appendix to the second edition of an index of mineral species and varieties arranged chemically. Trustees of the British Museum (Natural History) 20 Holland TJB, Redfern SAT (1997) Unit cell refinement from powder diffraction data: the use of regression diagnostics. Miner Mag 61:65–77 Kijima N, Tanaka K, Marumo F (1983) Electron-density distributions in crystals of KMnF3 and KNiF3. Acta Cryst B39:557–561 Mitchell RH (1997) Carbonate-carbonate miscibility, neighborite and potassium iron sulphide in Oldoinyo Lengai natrocarbonatite. Miner Mag 61:779–789 Mitchell RH, Cranswick LMD, Swainson I (2006) Neutron diffraction determination of the cell dimensions and thermal expansion of the fluoroperovskite KMgF3 from 293 to 3.6 K. Phys Chem Minerals 33:587–594 Muradyan LA, Zavodnik DE, Makarova IP, Aleksandrov KS, Simonov VI (1984) Thermal vibration of atoms in the structure of KMgF3 at 293 and 123 K. Krystallografiya 29:392–394 Parascandola A (1950) Notizie sullo stato attuale del Vesuvio. Bollettino della Società Geologica Italiana 69(3):593–603 Parascandola A (1951) I minerali del Vesuvio nella eruzione del marzo 1944 e quelli formati durante l’attuale periodo di riposo. Bollettino della Società Geologica Italiana 70(3):513–526 Povarennykh AS (1972) Crystal chemical classification of minerals, vol 2. Plenum Press, New York Santacroce R, Cioni R, Marianelli P, Sbrana A, Sulpizio R, Zanchetta G, Donahue DJ, Joron JL (2008) Age and whole rock-glass composition of proximal pyroclastics from the major explosive eruptions of Somma-Vesuvius: a review as a tool for distal tephrostratigraphy. J Volcanol Geotherm Res 177:1–18 Sheldrick GM (2000) SADABS area-detector absorption correction program. Bruker AXS Inc., Madison Sheldrick GM (2008) A short history of SHELX. Acta Cryst A64:112–122 Smith DGW, Nickel EH (2007) A system for codification for unnamed minerals: report of the Subcommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification. Can Mineral 45:983–1055 Swanson HE, McMurdie HF, Morris MC, Evans EH (1968) Standard X-ray diffraction powder patterns. In: National Bureau of Standards Monograph (U.S.) 25, Section 6, p 42 Tucker RD, Belkin HE, Schulz KJ, Peters SG, Buttleman KP (2011) Rare earth element mineralogy, geochemistry, and preliminary resource assessment of the Khanneshin carbonatite complex, Helmand Province, Afghanistan: U.S. Geological Survey Open-File Report 2011–1207, p 50. http://pubs.usgs.gov/of/2011/1207/ Wu GQ, Hoppe R (1984) Über die synthese von MLnF3 aus MLnF4. Zeit Anorg Allg Chem 514:92–98 Zaitsev AN, Keller J, Spratt J, Perova EN, Kearsley A (2008) Nyerereite– pirssonite–calcite–shortite relationship in altered natrocarbonatites, Oldoinyo Lengai, Tanzania. Can Mineral 46:843–860 Zhao Y (1998) Crystal chemistry and phase transitions of perovskite in P-T-X space: data for (KxNa1−x)MgF3 perovskites. J Solid State Chem 141:121–132en
dc.description.obiettivoSpecifico1V. Storia e struttura dei sistemi vulcanicien
dc.description.journalTypeJCR Journalen
dc.description.fulltextrestricteden
dc.relation.issn0342-1791en
dc.relation.eissn1432-2021en
dc.contributor.authorCampostrini, I.en
dc.contributor.authorDemartin, F.en
dc.contributor.authorCastellano, C.en
dc.contributor.authorRusso, M.en
dc.contributor.departmentDipartimento di Chimica - Univerità di Milanoen
dc.contributor.departmentDipartimento di Chimica - Univerità di Milanoen
dc.contributor.departmentDipartimento di Chimica - Università di Milanoen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDipartimento di Chimica Strutturale e Stereochimica Inorganica Università di Milano-
crisitem.author.deptDipartimento di Chimica, Universita` degli Studi di Milano,-
crisitem.author.deptDipartimento di Chimica - Università di Milano-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia-
crisitem.author.orcid0000-0001-5161-5951-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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