1-20 OF 111 RESULTS FOR

ferriphlogopite

Results shown limited to content with bounding coordinates.
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article

5 M 3 ferriphlogopite from the Ruiz Peak (New Mexico, USA): First occurrence of a mica polytype with coexistence of M 1- and M 2-layers

Isabella Pignatelli, Massimo Nespolo
Published: 01 October 2011
European Journal of Mineralogy (2011) 23 (5): 703–715.
DOI: https://doi.org/10.1127/0935-1221/2011/0023-2138
...Isabella Pignatelli; Massimo Nespolo Abstract The coexistence of two types of layer ( M 1 and M 2, differing for the origin in the octahedral sheet) in a mica polytype is confirmed for the first time in this work. The sample analysed is a 5-layer ferriphlogopite from the Ruiz Peak volcano...
FIGURES | View All (6)
View PDF for article title, 5 M 3 <span class="search-highlight">ferriphlogopite</span> from the Ruiz Peak (New Mexico, USA): First occurrence of a mica polytype with coexistence of M 1- and M 2-layers
Purchase
Add to Citation Manager for 5 M 3 <span class="search-highlight">ferriphlogopite</span> from the Ruiz Peak (New Mexico, USA): First occurrence of a mica polytype with coexistence of M 1- and M 2-layers
Journal Article

Structural modelling, refinement and possible formation mechanism of a 4 M 3 non-MDO ferriphlogopite (Ruiz Peak volcano)

Isabella Pignatelli, Michal Dusek, George De Titta, Massimo Nespolo
Published: 01 January 2011
European Journal of Mineralogy (2011) 23 (1): 73–84.
DOI: https://doi.org/10.1127/0935-1221/2011/0023-2078
...Isabella Pignatelli; Michal Dusek; George De Titta; Massimo Nespolo Abstract The first reliable structural refinement of a non-MDO mica polytype from single-crystal X-ray diffraction data is presented. The sample is a 4-layer ferriphlogopite from the Ruiz Peak volcano, New Mexico, with cell...
FIGURES
View PDF for article title, Structural modelling, refinement and possible formation mechanism of a 4 M 3 non-MDO <span class="search-highlight">ferriphlogopite</span> (Ruiz Peak volcano)
Purchase
Add to Citation Manager for Structural modelling, refinement and possible formation mechanism of a 4 M 3 non-MDO <span class="search-highlight">ferriphlogopite</span> (Ruiz Peak volcano)
Journal Article

Local and average Fe distribution in trioctahedral micas : Analysis of Fe K -edge XANES spectra in the phlogopite-annite and phlogopite-tetra-ferriphlogopite joins on the basis of single-crystal XRD refinements

Francesca TOMBOLINI, Maria Franca BRIGATTI, Augusto MARCELLI, Giannantonio CIBIN, Annibale MOTTANA, Gabriele GIULI
Published: 01 November 2002
European Journal of Mineralogy (2002) 14 (6): 1075–1085.
DOI: https://doi.org/10.1127/0935-1221/2002/0014-1075
... addresses the three end-members phlogopite, annite and tetra-ferriphlogopite, used as reference materials, and enters later in the interpretation of nine trioctahedral micas intermediate in composition along the joins phlogopite-tetra-ferriphlogopite and phlogopite-annite. A detailed analysis...
FIGURES | View All (6)
View PDF for article title, Local and average Fe distribution in trioctahedral micas : Analysis of Fe K -edge XANES spectra in the phlogopite-annite and phlogopite-tetra-<span class="search-highlight">ferriphlogopite</span> joins on the basis of single-crystal XRD refinements
Purchase
Add to Citation Manager for Local and average Fe distribution in trioctahedral micas : Analysis of Fe K -edge XANES spectra in the phlogopite-annite and phlogopite-tetra-<span class="search-highlight">ferriphlogopite</span> joins on the basis of single-crystal XRD refinements
Journal Article

Experimental and theoretical XANES and EXAFS study of tetra-ferriphlogopite

Gabriele GIULI, Eleonora PARIS, Ziyu WU, Maria Franca BRIGATT, Giannantonio CIBIN, Annibale MOTTANA, Augusto MARCELLI
Published: 01 November 2001
European Journal of Mineralogy (2001) 13 (6): 1099–1108.
DOI: https://doi.org/10.1127/0935-1221/2001/0013-1099
...Gabriele GIULI; Eleonora PARIS; Ziyu WU; Maria Franca BRIGATT; Giannantonio CIBIN; Annibale MOTTANA; Augusto MARCELLI Abstract Experimental and theoretical EXAFS and XANES data on Fe coordination and bond distances have been obtained for a natural tetra-ferriphlogopite. XANES data show...
FIGURES | View All (6)
View PDF for article title, Experimental and theoretical XANES and EXAFS study of tetra-<span class="search-highlight">ferriphlogopite</span>
Purchase
Add to Citation Manager for Experimental and theoretical XANES and EXAFS study of tetra-<span class="search-highlight">ferriphlogopite</span>
Journal Article

Refinement of the structure of natural ferriphlogopite

Maria Franca Brigatti, Luca Medici, Luciano Poppi
Published: 01 August 1996
Clays and Clay Minerals (1996) 44 (4): 540–545.
Purchase
Add to Citation Manager for Refinement of the structure of natural <span class="search-highlight">ferriphlogopite</span>
Image
a) Mean &lt;T–O&gt; bond-distance versus Xtetra-ferriphlogopite. b) Mean proportion of unshared edges at the M2 site (eu(M2)) versus Xtetra-ferriphlogopite. c) Tetrahedron rotation angle, α, versus the proportion of the tetra-ferriphlogopite end member (Xtetra-ferriphlogopite). Filled symbols refer to trioctahedral micas from this study, whereas open symbols refer to trioctahedral mica crystals from Brigatti et al. (1996a, b, 1999). Samples from the Tapira complex: crosses: dunite, circles: bebedourite, diamonds enclosing a cross: perovskite magnetitite, diamonds: glimmerite, squares: garnet magnetitite, star: clinopyroxenite. Titanian phlogopite from Presidente Olegario lavas: triangle pointing up, ferroan [4]Fe3+-bearing phlogopite from Limeira I: triangle pointing down, tetra-ferriphlogopite of Hazen et al.(1981): hexagon, tetra-ferriphlogopite of Semenova et al.(1977): hexagon enclosing a cross.

a) Mean <T–O> bond-distance versus X tetra-ferriphlogopite . b) Mea...

Published: 01 October 2001
F ig . 3. a) Mean <T–O> bond-distance versus X tetra-ferriphlogopite . b) Mean proportion of unshared edges at the M 2 site (e u(M2) ) versus X tetra-ferriphlogopite . c) Tetrahedron rotation angle, α, versus the proportion of the tetra-ferriphlogopite end member (X tetra
Journal Article

CRYSTAL CHEMISTRY AND SURFACE CONFIGURATIONS OF TWO IRON-BEARING TRIOCTAHEDRAL MICA-1 M POLYTYPES

Chiara Elmi, Maria Franca Brigatti, Stephen Guggenheim, Luca Pasquali, Monica Montecchi, Stefano Nannarone
Published: 01 August 2014
Clays and Clay Minerals (2014) 62 (4): 243–252.
DOI: https://doi.org/10.1346/CCMN.2014.0620401
.... a tetra-ferriphlogopite from an alkaline-carbonatitic complex near Tapira, Belo Horizonte, Minas Gerais, Brazil, and an Fe 2+ -bearing phlogopite containing less tetrahedral Fe 3+ from the Kovdor carbonatite-bearing, alkaline-ultrabasic complex, Kola Peninsula, Russia, are explored here. Mineral-surface...
FIGURES | View All (5)
View PDF for article title, CRYSTAL CHEMISTRY AND SURFACE CONFIGURATIONS OF TWO IRON-BEARING TRIOCTAHEDRAL MICA-1 M POLYTYPES
Purchase
Add to Citation Manager for CRYSTAL CHEMISTRY AND SURFACE CONFIGURATIONS OF TWO IRON-BEARING TRIOCTAHEDRAL MICA-1 M POLYTYPES
Journal Article

HENRYMEYERITE, A NEW HOLLANDITE-TYPE Ba–Fe TITANATE FROM THE KOVDOR COMPLEX, RUSSIA

Roger H. Mitchell, Viktor N. Yakovenchuk, Anton R. Chakhmouradian, Peter C. Burns, Yakov A. Pakhomovsky
Published: 01 June 2000
The Canadian Mineralogist (2000) 38 (3): 617–626.
DOI: https://doi.org/10.2113/gscanmin.38.3.617
...Roger H. Mitchell; Viktor N. Yakovenchuk; Anton R. Chakhmouradian; Peter C. Burns; Yakov A. Pakhomovsky Abstract A new hollandite-type titanate, henrymeyerite, occurs in a vein of tetra-ferriphlogopite – calcite – dolomite carbonatite of the Kovdor alkaline ultramafic complex, Kola Peninsula...
FIGURES
View PDF for article title, HENRYMEYERITE, A NEW HOLLANDITE-TYPE Ba–Fe TITANATE FROM THE KOVDOR COMPLEX, RUSSIA
Purchase
Add to Citation Manager for HENRYMEYERITE, A NEW HOLLANDITE-TYPE Ba–Fe TITANATE FROM THE KOVDOR COMPLEX, RUSSIA
Journal Article

MAJOR- AND TRACE-ELEMENT COMPOSITION OF OLIVINE, PEROVSKITE, CLINOPYROXENE, Cr–Fe–Ti OXIDES, PHLOGOPITE AND HOST KAMAFUGITES AND KIMBERLITES, ALTO PARANAÍBA, BRAZIL

Leone Melluso, Michele Lustrino, Excelso Ruberti, Pietro Brotzu, Celso de Barros Gomes, Lucio Morbidelli, Vincenzo Morra, Darcy P. Svisero, Fosco d’Amelio
Published: 01 February 2008
The Canadian Mineralogist (2008) 46 (1): 19–40.
DOI: https://doi.org/10.3749/canmin.46.1.19
... contents, likely due to the different position of this phase in the crystallization sequence; Sc reaches values as high as 200 ppm, whereas the lanthanides show very variable enrichment in light over heavy REE, and commonly show a negative Eu anomaly. The olivine, phlogopite (and tetra-ferriphlogopite), Cr...
FIGURES | View All (11)
View PDF for article title, MAJOR- AND TRACE-ELEMENT COMPOSITION OF OLIVINE, PEROVSKITE, CLINOPYROXENE, Cr–Fe–Ti OXIDES, PHLOGOPITE AND HOST KAMAFUGITES AND KIMBERLITES, ALTO PARANAÍBA, BRAZIL
Purchase
Add to Citation Manager for MAJOR- AND TRACE-ELEMENT COMPOSITION OF OLIVINE, PEROVSKITE, CLINOPYROXENE, Cr–Fe–Ti OXIDES, PHLOGOPITE AND HOST KAMAFUGITES AND KIMBERLITES, ALTO PARANAÍBA, BRAZIL
Journal Article

CRYSTAL CHEMISTRY OF TRIOCTAHEDRAL MICAS-1 M FROM THE ALTO PARANAÍBA IGNEOUS PROVINCE, SOUTHEASTERN BRAZIL

Maria Franca Brigatti, Luca Medici, Luciano Poppi, Carmela Vaccaro
Published: 01 October 2001
The Canadian Mineralogist (2001) 39 (5): 1333–1345.
DOI: https://doi.org/10.2113/gscanmin.39.5.1333
...F ig . 3. a) Mean <T–O> bond-distance versus X tetra-ferriphlogopite . b) Mean proportion of unshared edges at the M 2 site (e u(M2) ) versus X tetra-ferriphlogopite . c) Tetrahedron rotation angle, α, versus the proportion of the tetra-ferriphlogopite end member (X tetra...
FIGURES | View All (8)
View PDF for article title, CRYSTAL CHEMISTRY OF TRIOCTAHEDRAL MICAS-1 M FROM THE ALTO PARANAÍBA IGNEOUS PROVINCE, SOUTHEASTERN BRAZIL
Purchase
Add to Citation Manager for CRYSTAL CHEMISTRY OF TRIOCTAHEDRAL MICAS-1 M FROM THE ALTO PARANAÍBA IGNEOUS PROVINCE, SOUTHEASTERN BRAZIL
Image
Mössbauer spectrum from several crystals of the ferriphlogopite sample.

Mössbauer spectrum from several crystals of the ferriphlogopite sample.

Published: 01 October 2011
Fig. 1. Mössbauer spectrum from several crystals of the ferriphlogopite sample.
Image
Fe K-XANES spectra of the clinochlore studied compared with those of tetra-ferriphlogopite and annite.

Fe K -XANES spectra of the clinochlore studied compared with those of tetr...

Published: 01 April 2009
Figure 1. Fe K -XANES spectra of the clinochlore studied compared with those of tetra-ferriphlogopite and annite.
Image
Variation in unit-cell parameter a versus Xtetra-ferriphlogopite. Symbols as in Figure 3.

Variation in unit-cell parameter a versus X tetra-ferriphlogopite . Symbo...

Published: 01 October 2001
F ig . 7. Variation in unit-cell parameter a versus X tetra-ferriphlogopite . Symbols as in Figure 3 .
Image
Si2p spectrum of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) displayed as a plot of electron binding energy vs. intensity (the number of electrons per second in a fixed and small energy interval). Dotted lines: experimental spectra; solid lines: fitted spectra.

Si 2p spectrum of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) ...

Published: 01 August 2014
Figure 1 Si 2p spectrum of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) displayed as a plot of electron binding energy vs . intensity (the number of electrons per second in a fixed and small energy interval). Dotted lines: experimental spectra; solid lines: fitted spectra.
Image
Mg1s spectra of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) displayed as a plot of electron binding energy vs. intensity (the number of electrons per second in a fixed and small energy interval). Dotted lines: experimental spectra; solid lines: fitted spectra.

Mg 1s spectra of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) d...

Published: 01 August 2014
Figure 3 Mg 1s spectra of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) displayed as a plot of electron binding energy vs . intensity (the number of electrons per second in a fixed and small energy interval). Dotted lines: experimental spectra; solid lines: fitted spectra.
Image
Fe2p spectrum with the curve fit obtained for tetra-ferriphlogopite (a). The spectrum is displayed as a plot of electron binding energy vs. intensity (the number of electrons per second in a fixed and small energy interval). The Fe3+ and Fe2+ multiplet peaks are labeled on the spectrum. Fesat3+ and Fesat2+ refer to the associated satellite peaks of Fe3+ and Fe2+, respectively. Fe2p spectrum obtained for Fe-bearing phlogopite (b). Dotted lines: experimental spectra; solid lines: deconvoluted peaks. See text for additional explanations.

Fe 2p spectrum with the curve fit obtained for tetra-ferriphlogopite (a). ...

Published: 01 August 2014
Figure 4 Fe 2p spectrum with the curve fit obtained for tetra-ferriphlogopite (a). The spectrum is displayed as a plot of electron binding energy vs . intensity (the number of electrons per second in a fixed and small energy interval). The Fe 3+ and Fe 2+ multiplet peaks are labeled
Image
K2p spectra of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) displayed as a plot of electron binding energy vs. intensity (the number of electrons per second in a fixed and small energy interval). Dotted lines: experimental spectra; solid lines: deconvoluted peaks. See text for additional explanations.

K 2p spectra of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) di...

Published: 01 August 2014
Figure 5 K 2p spectra of tetra-ferriphlogopite (a) and Fe-bearing phlogopite (b) displayed as a plot of electron binding energy vs . intensity (the number of electrons per second in a fixed and small energy interval). Dotted lines: experimental spectra; solid lines: deconvoluted peaks. See text
Image
Angle-dependent K K-XANES spectra recorded on tetra-ferriphlogopite Tas22-1 (Tapira, Minas Gerais, Brazil) at various 𝛉 angles (inset: enlargement of the FMS to IMS section for two extreme rotations).

Angle-dependent K K -XANES spectra recorded on tetra-ferriphlogopite Tas22...

Published: 01 July 2006
F igure 3. Angle-dependent K K -XANES spectra recorded on tetra-ferriphlogopite Tas22-1 (Tapira, Minas Gerais, Brazil) at various 𝛉 angles (inset: enlargement of the FMS to IMS section for two extreme rotations).
Image
Fe K-edge XAS spectra of studied ferroan phlogopite PBA90-94 compared with tetra-ferriphlogopite and annite.

Fe K -edge XAS spectra of studied ferroan phlogopite PBA90-94 compared wit...

Published: 01 October 2008
F ig . 2. Fe K -edge XAS spectra of studied ferroan phlogopite PBA90-94 compared with tetra-ferriphlogopite and annite.
Image
Changes in a Tapira tetra-ferriphlogopite Si K-edge spectrum due to changing the orientation of the same crystal blade against the impinging, horizontally-polarized synchrotron radiation beam. In the right panel a magnified view of the changes undergone by the edge and FMS regions.

Changes in a Tapira tetra-ferriphlogopite Si K- edge spectrum due to chang...

Published: 01 January 2002
Figure 11. Changes in a Tapira tetra-ferriphlogopite Si K- edge spectrum due to changing the orientation of the same crystal blade against the impinging, horizontally-polarized synchrotron radiation beam. In the right panel a magnified view of the changes undergone by the edge and FMS regions.