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maricite

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Journal Article
Published: 01 July 2019
European Journal of Mineralogy (2019) 31 (4): 837–842.
...Fabrice Brunet; Camille Crouzet; Sorina Cretu; Rénald David; Matthieu Courty; Arnaud Demortière; Nadir Recham Single-phase marićite, NaFePO 4 , was synthesized from a mixture of monosodium phosphate and iron oxalate at 750 °C and atmospheric pressure. Thermal treatment of synthetic marićite in air...
FIGURES | View All (5)
Journal Article
Published: 01 November 1977
The Canadian Mineralogist (1977) 15 (4): 518–521.
Journal Article
Published: 01 August 1977
The Canadian Mineralogist (1977) 15 (3): 396–398.
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The crystal structures of augellite, jagowerite and maricite: (a) augelite projected onto (001); (b) augelite projected onto (010); (c) jagowerite projected onto (001); (d) jagowerite projected a few degrees away from onto (010); (e) maricite projected onto (100); (e) maricite projected a few degrees away from onto (001). Legend as in Figure 37.
Published: 01 January 2002
Figure 38. The crystal structures of augellite, jagowerite and maricite: (a) augelite projected onto (001); (b) augelite projected onto (010); (c) jagowerite projected onto (001); (d) jagowerite projected a few degrees away from onto (010); (e) maricite projected onto (100); (e) maricite
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(a) Rietveld refinement of the synthetic marićite used as starting material for a thermal treatment. (b) FE-SEM imaging in secondary electron mode before oxidation of marićite in air at 600 °C.
Published: 01 July 2019
Fig. 1 (a) Rietveld refinement of the synthetic marićite used as starting material for a thermal treatment. (b) FE-SEM imaging in secondary electron mode before oxidation of marićite in air at 600 °C.
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(a) XRPD profile matching of Na3Fe2(PO4)3 + Fe2O3 obtained after thermal decomposition of synthetic marićite. (b) FE-SEM imaging in secondary electron mode after oxidation of synthetic marićite in air at 600 °C.
Published: 01 July 2019
Fig. 3 (a) XRPD profile matching of Na 3 Fe 2 (PO 4 ) 3  + Fe 2 O 3 obtained after thermal decomposition of synthetic marićite. (b) FE-SEM imaging in secondary electron mode after oxidation of synthetic marićite in air at 600 °C.
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Stability of natrophilite, karenwebberite and marićite in the Fe/(Fe+Mn) – T field. The points represent the chemical compositions of synthetic marićites reported by Hatert et al. (2006, 2011), and the high-temperature stability limit of natrophilite has been constrained from the data published by Corlett and Armbruster (1979).
Published: 01 April 2013
Figure 3 Stability of natrophilite, karenwebberite and marićite in the Fe/(Fe+Mn) – T field. The points represent the chemical compositions of synthetic marićites reported by Hatert et al. (2006 , 2011 ), and the high-temperature stability limit of natrophilite has been constrained from
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Characterization of the marićite thermal behavior in air. (a) Ex situ diffractograms after stepwise heating of 12 h in the 30–600 °C range. (b) Thermal gravimetry analysis in the 25–700 °C range using a heating ramp of 10 °C/min in air (50 mL/min).
Published: 01 July 2019
Fig. 2 Characterization of the marićite thermal behavior in air. (a) Ex situ diffractograms after stepwise heating of 12 h in the 30–600 °C range. (b) Thermal gravimetry analysis in the 25–700 °C range using a heating ramp of 10 °C/min in air (50 mL/min).
Journal Article
Published: 01 April 2014
The Canadian Mineralogist (2014) 52 (2): 351–371.
... series ( x = 0 to 1), which reflects the compositions of natural, weakly oxidized, primary alluaudites. The authors showed that, when the oxygen fugacity is controlled by the Ni-NiO buffer, single-phase alluaudites crystallize at 400 and 500 °C, whereas the association alluaudite + marićite appears...
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Journal Article
Published: 01 April 2013
American Mineralogist (2013) 98 (4): 767–772.
...Figure 3 Stability of natrophilite, karenwebberite and marićite in the Fe/(Fe+Mn) – T field. The points represent the chemical compositions of synthetic marićites reported by Hatert et al. (2006 , 2011 ), and the high-temperature stability limit of natrophilite has been constrained from...
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Electrochemical performances versus Na+/Na0 of Na3Fe2(PO4)3: potential versus composition curves obtained from sample synthetized after thermal oxidation of marićite NaFePO4 in air. The derivative curve (dx/dV) is plotted as a function of electrochemical potential in the insert.
Published: 01 July 2019
Fig. 5 Electrochemical performances versus Na + /Na 0 of Na 3 Fe 2 (PO 4 ) 3 : potential versus composition curves obtained from sample synthetized after thermal oxidation of marićite NaFePO 4 in air. The derivative curve (d x /d V ) is plotted as a function of electrochemical potential
Image
(a) Large myrmekitic sarcopside grain (sample H.281, scanning electron microscope, back-scattered electron image). (b) Large black crystals of Fe2+3Fe3+4(PO4)6, surrounded by a matrix of fine-grained Fe3+4(P2O7)3 (sample H.282, plane polarized light; the long edge of the photograph is approximately 1 mm). (c) Large pink crystals of Na4Fe2+Fe3+(PO4)3, associated with tiny grains of colorless marićite and with Na7Fe2+Fe3+3(PO4)6 green, idiomorphic crystals. The strong pleochroism of Na7Fe2+Fe3+3(PO4)6, with colors from bottle green to pinkish brown, is clearly visible (sample H.261, plane polarized light; the long edge of the photograph is approximately 500 μm). (d) Large crystal of Na2Fe3+(PO4)(HPO4)•H2O, showing a light pink color and a perfect cleavage plane parallel to the elongation. The black aggregates surrounding this crystal are composed of Na7Fe2+Fe3+3(PO4)6 (sample H.263, plane polarized light; the long edge of the photograph is approximately 1 mm). (e) The crystal of Figure 1d, observed after a rotation of 90°. The strong pleochroism, from light pink to deep orange, is clearly visible. (f) Large pink crystals of Na4Fe2+Fe3+(PO4)3, associated with tiny grains of colorless marićite and with an orange elongated crystal of Na3Fe3+(PO4)2 (sample H.262, plane polarized light; the long edge of the photograph is approximately 500 μm).
Published: 01 April 2014
of the photograph is approximately 1 mm). (c) Large pink crystals of Na 4 Fe 2+ Fe 3+ (PO 4 ) 3 , associated with tiny grains of colorless marićite and with Na 7 Fe 2+ Fe 3+ 3 (PO 4 ) 6 green, idiomorphic crystals. The strong pleochroism of Na 7 Fe 2+ Fe 3+ 3 (PO 4 ) 6 , with colors from bottle green to pinkish
Journal Article
Published: 01 December 2000
The Canadian Mineralogist (2000) 38 (6): 1425–1432.
...; beam size: 5 μm; peak count time: 2 s; background count time: 10 s. The following standards and crystals were used ( K α X-ray lines): F: fluororiebeckite, TAP; Mg: forsterite; TAP; Al: andalusite, TAP; Si: diopside, PET/TAP; P: maricite, PET; Mn: spessartine, LiF; Fe: maricite, LiF. The resulting...
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Journal Article
Published: 01 November 2018
The Canadian Mineralogist (2018) 56 (6): 923–938.
... as occuring at this locality, and BFR is the type locality for the minerals barićite ( Sturman & Mandarino 1976 ), gormanite ( Sturman et al . 1981a ), marićite ( Sturman et al . 1977 ), nahpoite ( Coleman & Robertson 1981 ), satterlyite ( Mandarino et al . 1978 ), and wicksite ( Sturman et al...
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Mössbauer spectra and Fe coordination polyhedra, with conventions as in Figure 1. Lithiophilite (Losey et al. 2004) DD135 contains a small amount of Fe3+ but its spectrum is dominated by Fe2+; both are in the M2 site. The spectrum of ludlamite (Abrahams and Bernstein 1966) DD219 has a small siderite impurity as well as doublets from Fe2+ and Fe3+ assigned to the M2 site. Lulzacite (Léone et al. 2000) DD197, although dominated by siderite, has two Fe2+ doublets assigned to M1 and M4. Lüneburgite (Sen Gupta et al. 1991) DD218 has a distinct Fe3+ doublet with δ more typical of tetrahedral Fe3+, but are more reasonably attributed to M1 and M2. Maricite (Le Page and Donnay 1977) MDD14 contains both Fe2+ and Fe3+ in the Fe site. In messelite (Fleck and Kolitsch 2003) DD228, Fe is only in the Fe site. In metavivianite (Chukanov et al. 2012) DD319, Fe2+ is distributed between two octahedral sites and Fe3+ occupies only one site, though it is unclear if it is Fe1 or Fe2. In landesite (Moore et al. 1980) ML-P26, three doublets represent Fe3+ in Fe1, Fe2+ in M2, and Fe2+ in M1, respectively. (Color online.)
Published: 01 May 2014
more typical of tetrahedral Fe 3+ , but are more reasonably attributed to M1 and M2. Maricite ( Le Page and Donnay 1977 ) MDD14 contains both Fe 2+ and Fe 3+ in the Fe site. In messelite ( Fleck and Kolitsch 2003 ) DD228, Fe is only in the Fe site. In metavivianite ( Chukanov et al. 2012 ) DD319, Fe
Image
(a) Large, idiomorphic, colorless crystals of Fe2P2O7, associated with minute alluaudite grains forming black aggregates (sample H.253, plane polarized light; the long edge of the photograph is approximately 1 mm). (b) Intergrowth of alluaudite (medium gray) and sarcopside (light gray) grains, associated with elongated crystals of Fe3(PO4)2·nH2O (dark gray) (sample H.278, scanning electron microscope, backscattered electron image). (c) Dark green crystals of alluaudite, associated with colorless grains of marićite (sample H.277, plane polarized light. The long edge of the photograph is approximately 500 μm). (d) Large, green, idiomorphic crystals of alluaudite, associated with brownish elongated crystals of X-phase (sample H.283, plane polarized light; the long edge of the photograph is approximately 500 μm). (e) Large idiomorphic sarcopside crystals (light gray), surrounded by Fe2+3 Fe3+4(PO4)6 grains (dark gray) (sample H.228, scanning electron microscope, back-scattered electron image). (f) Large myrmekitic sarcopside crystal (light gray), surrounded by Fe2+3Fe3+4(PO4)6 grains (dark gray) (sample H.247, scanning electron microscope, back-scattered electron image).
Published: 01 April 2014
gray) grains, associated with elongated crystals of Fe 3 (PO 4 ) 2· n H 2 O (dark gray) (sample H.278, scanning electron microscope, backscattered electron image). (c) Dark green crystals of alluaudite, associated with colorless grains of marićite (sample H.277, plane polarized light. The long edge
Journal Article
Published: 26 May 2021
The Canadian Mineralogist (2021) 59 (1): 243–263.
...-dispersion mode: excitation voltage: 15 kV, specimen current 20 nA, beam size: 15 μm, peak count-time: 20 s, background count-time: 10 s. The following standards (all K α X-ray lines) and crystals were used for the elements sought: Na: marićite, TAP; Mg: forsterite, TAP; Si: diopside, PET; P: marićite, PET...
FIGURES
Journal Article
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 914–942.
... more typical of tetrahedral Fe 3+ , but are more reasonably attributed to M1 and M2. Maricite ( Le Page and Donnay 1977 ) MDD14 contains both Fe 2+ and Fe 3+ in the Fe site. In messelite ( Fleck and Kolitsch 2003 ) DD228, Fe is only in the Fe site. In metavivianite ( Chukanov et al. 2012 ) DD319, Fe...
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Journal Article
Published: 01 May 2006
American Mineralogist (2006) 91 (5-6): 747–752.
... Zn 2 (SO 4 )(OH) 2 117.1 −10.4* −427.9* 95.5 3 e−21 5 e−5 3 e−4 Cd 3 (SO 4 )(OH) 4 191.2 26.3* −553.5* 205.7 3 e−34 2 e−5 1 e−5 Cd 3 (SO 4 ) 2 (OH) 2 121.7 −40.9* −545.5* 105.5 5 e−22 4 e−4 1 e−3 NaFePO 4 maricite 102.2†† −34.8* −459.7* 57.9 1 e−18 1 e−6 4...
Journal Article
Published: 01 September 2017
American Mineralogist (2017) 102 (9): 1906–1914.
... 0.07 PO 3.95 (OH) 0.05 Moore (1972) Brancheville, Connecticut maricite (Na 0.91 ) Σ0.91 (Fe 0.89 Mn 0.07 Mg 0.03 ) Σ0.99 P 1.02 O 4 (Na) Σ1.0 (Fe 0.90 Mn 0.07 Mg 0.03 ) Σ1.0 PO 4 Sturman et al. (1977) Big Fish River area, Yukon Territo ry, Canada nacaphite Na 1.99 (Ca...
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