Die Kristallstruktur von Linarit PbCuSO4(OH)2

Bachmann, H. G.; Zemann, J.

doi:10.1107/s0365110x61002254

Cited by 37 publications

(9 citation statements)

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“…2) are built up from chains of edge-sharing FeOs(OH) octahedra bonded by PO4 tetrahedra. These polyhedra form a chain of a type already encountered in linarite (Bachmann & Zemann, 1961;Hawthorne, 1990Hawthorne, , 1994. Octahedra are linked one to another via their O-atom vertices O1 and 03, the O1 atoms belonging to hydroxy groups.…”

Section: M~ Cavellec Didier Riou and Gi~rard Fereymentioning

confidence: 95%

A Two-Dimensional Iron Phosphate Templated by Ethylenediamine

Cavellec¹,

Riou²,

Férey³

1995

Acta Crystallogr C Cryst Struct Commun

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Section: M~ Cavellec Didier Riou and Gi~rard Fereymentioning

confidence: 95%

A Two-Dimensional Iron Phosphate Templated by Ethylenediamine

Cavellec¹,

Riou²,

Férey³

1995

Acta Crystallogr C Cryst Struct Commun

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“…In chalcocyanite, the structure of octahedral chains parallel to [010] is connected to a framework by [SO 4 ] tetrahedra [84]. In the linarite structure, octahedral Cu-chains are connected with vertex-shared [SO 4 ] tetrahedra and eight-coordinated Pb atoms [85]. The sulfate groups are connected through Pb atoms; thus, they form a double (Pb-S) layer between Cu-layers.…”

Section: Crystal Structure and Complexity Considerationsmentioning

confidence: 99%

Copper Minerals at Vesuvius Volcano (Southern Italy): A Mineralogical Review

et al. 2019

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This work is part of a project focused on the Somma–Vesuvius volcano and aimed at identifying Cu minerals related to mineralizing processes associated with magmatic activity in an active magmatic-hydrothermal system. A mineralogical survey was carried out on a set of samples represented by sublimates and fumarolic products from the collection of the Mineralogical Museum of the University of Naples Federico II (Italy). These samples are mainly related to most recent eruptive episodes of Vesuvius activity, from 1631 onward. Copper-bearing minerals were characterized, as well as associated minerals, by X-ray diffraction (XRD) scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS). An investigation on the structural complexity of Cu-mineral assemblages with different temperature formations was also carried out using the TOPOS software package. The main copper phases are sulfates, followed by vanadates, hydroxyhalides, oxides, carbonates, silicates and finally, phosphates. New mineral occurrences for Vesuvius, both Cu-bearing and Cu-free, are described. Nevertheless, the fumarolic/alteration minerals at Vesuvius cannot be considered of economic relevance as a copper reservoir, this type of mineralizations are significant for copper crystal chemistry and for the knowledge of the mineralogical variants. The obtained datasets can be of interest for the knowledge of volcanic byproducts of copper ore deposits (i.e., porphyry copper systems) and of (base) metal segregation processes.

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“…Linarite crystallizes in the monoclinic P2 1 /m structure leading to CuO 4 plaquettes, which form Cu-ribbons 23–25 . In zero magnetic fields the spin spiral is established in a plane spanned by crystallographic b -direction and by 27° tilted a -direction below 2.85 K. Magnetic fields up to 10 T induce at least five different magnetic phases 26, 27 .…”

Section: Introductionmentioning

confidence: 99%

Dielectric properties of complex magnetic field induced states in PbCuSO4(OH)2

Mack

Ruff

Nidda

et al. 2017

Sci Rep

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Spin spirals, which coexist with collinear spin order in linarite PbCuSO4(OH)2, indicate electrical polarisation textures of spin-multipolar phases. We derive experimental evidence by a detailed investigation of the magnetic-field dependent dielectric and electric polarization properties at low temperatures. Linarite exhibits a quasi-one-dimensional frustrated S = ½ spin chain, which forms 3D spin-spiral order in zero magnetic field for T < 2.85 K. Recently, due to the monoclinic lattice of linarite with CuO2 ribbon chains, complex magnetic field induced states were found. These spin-multipolar phases, which compete with spin-density waves at low magnetic fields, exist in close vicinity to the transition from the spin spiral into field induced spin polarized state. Via antisymmetric Dzyaloshinskii-Moriya interaction spin-driven ferroelectricity develops in the spin-spirals state. Via electric polarization measurements this allows to prove the transitions into complex magnetic field induced phases. Thorough analyses of the temperature and magnetic field dependent dielectric properties of a naturally grown single crystalline sample provide a detailed (T,H) phase diagrams for the three different crystallographic directions.

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Die Kristallstruktur von Linarit PbCuSO4(OH)2

Cited by 37 publications

References 0 publications

A Two-Dimensional Iron Phosphate Templated by Ethylenediamine

A Two-Dimensional Iron Phosphate Templated by Ethylenediamine

Copper Minerals at Vesuvius Volcano (Southern Italy): A Mineralogical Review

Dielectric properties of complex magnetic field induced states in PbCuSO4(OH)2

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