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menzerite

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Journal Article
Published: 01 February 2012
The Canadian Mineralogist (2012) 50 (1): 73-99.
...Jeffrey H. Marsh; Edward S. Grew; Christopher C. Gerbi; Martin G. Yates; Nicholas G. Culshaw Abstract The recent discovery of menzerite-(Y), a garnet containing essential Y, in Mesoproterozoic supracrustal granulites from the southwestern Grenville province has prompted an investigation...
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Journal Article
Published: 01 October 2010
The Canadian Mineralogist (2010) 48 (5): 1171-1193.
...Edward S. Grew; Jeffrey H. Marsh; Martin G. Yates; Biljana Lazic; Thomas Armbruster; Andrew Locock; Samuel W. Bell; M. Darby Dyar; Heinz-Jürgen Bernhardt; Olaf Medenbach Abstract La menzerite-(Y), nouvelle espèce minérale, se présente en noyaux bruns rougeâtres, n = 1.844 (20), jusqu’à 70 μm...
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Journal Article
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 1022-1034.
... electroneutrality. We compare the energetic costs of competing coupled-substitution schemes, using lattice dynamics calculations to assess defect energies and exchange energies for each scheme. Substitutions with relatively low energetic costs introduce menzerite-like components via the exchange vector [YM −1 ·(Mg...
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Diagram for discriminating <b>menzerite</b>-(Y) from andradite and morimotoite: so...
Published: 23 August 2019
Fig. 5. Diagram for discriminating menzerite-(Y) from andradite and morimotoite: solid blue lines are consistent with the dominant-valency rule, whereas dashed red lines are consistent with the dominant-end-member approach (cf. with fig. 10 of Grew et al. , 2013 ).
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Diagram distinguishing <b>menzerite</b>-(Y) from species within the garnet group.
Published: 01 April 2013
Figure 9 Diagram distinguishing menzerite-(Y) from species within the garnet group.
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Plot of <b>menzerite</b>-(Y) compositions at the  Y  site projected from {Y 3 }[ R...
Published: 01 April 2013
Figure 10 Plot of menzerite-(Y) compositions at the Y site projected from {Y 3 }[ R 2 3+ ]( R 3 3+ )O 12 onto the plane defined by the components {Ca 3 }[Ti 4+ R 2+ ](Si 3 4+ )O 12 , {Ca 3 }[ R 2 3+ ](Si 3 4+ )O 12 , and {(REE) 2 Ca}[ R 2 2+ ](Si 3 4+ )O 12 (cf. Fig. 7a , Grew
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(b) Geological map of boxed area in  Figure 1a , showing the <b>menzerite</b>-(Y) ...
Published: 01 February 2012
Fig. 1 (b) Geological map of boxed area in Figure 1a , showing the menzerite-(Y) locality within the metasupracrustal unit in the southwestern Parry Sound domain (after Culshaw et al. 1989 , Culshaw et al. 2010 ). SD: Shawanaga domain; SSZ: Shawanaga shear zone; lPSSZ: lower Parry Sound
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(a) Photomicrograph (PPL) of a <b>menzerite</b>-(Y)-bearing compositional layer in...
Published: 01 February 2012
Fig. 3 (a) Photomicrograph (PPL) of a menzerite-(Y)-bearing compositional layer in sample GB50C showing coarse-grained, weakly foliated microstructure composed of orthopyroxene, plagioclase, quartz, ilmenite, biotite, euhedral almandine and symplectitic almandine. (b) Photomicrograph (PPL
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Photomicrograph of grains of <b>menzerite</b>-(Y) used for single-crystal (#2) and...
Published: 01 October 2010
F ig . 1. Photomicrograph of grains of menzerite-(Y) used for single-crystal (#2) and optical study (#1). Plane-polarized light.
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Projection along  a * of reciprocal space showing separation of <b>menzerite</b>-(...
Published: 01 October 2010
F ig . 2. Projection along a * of reciprocal space showing separation of menzerite-(Y) reflections [unfilled circles, a = 11.9947(6) Å] from almandine reflections [gray filled circles, a = 11.6598(8) Å]. Inset shows grain #2, section GB50A1 from which the pattern was obtained; spacing
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DETAILS OF THE SINGLE-CRYSTAL X-RAY STRUCTURE REFINEMENTS OF <b>MENZERITE</b>-(Y) ...
Published: 01 October 2010
TABLE 1. DETAILS OF THE SINGLE-CRYSTAL X-RAY STRUCTURE REFINEMENTS OF MENZERITE-(Y) AND ALMANDINE*
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Maps of six elements in <b>menzerite</b>-(Y), grain #5, section GB50A2. Back-scatt...
Published: 01 October 2010
F ig . 3. Maps of six elements in menzerite-(Y), grain #5, section GB50A2. Back-scattered electron image shows area mapped (white square). The following lines were measured: Al K α, Ca K α, Ti K α, Y L α, Er L α, and Yb L α. Color scales to the right of the images show how the image was adjusted
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Back-scattered electron images of <b>menzerite</b>-(Y). A. Sample GB50A2, grain #1...
Published: 01 October 2010
F ig . 4. Back-scattered electron images of menzerite-(Y). A. Sample GB50A2, grain #10. B. Sample GB94I4, grain 1. C. Sample GB50C, grain #7/1. D. Sample GB50A2, grain #1. E. Sample GB94I4B, grain #1. F. Sample GB50A2, grain #8. Abbreviations: Alm: almandine, Bt: biotite, Hbl: calcic amphibole
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Profile for selected constituents in <b>menzerite</b>-(Y) and enclosing almandine....
Published: 01 October 2010
F ig . 5. Profile for selected constituents in menzerite-(Y) and enclosing almandine. A. Back-scattered electron image of sample GB50A1, grain #3, showing profile line (red). B. Profiles for five constituents along the 50 μm trace in A. C. Profiles for Y and Yb from B, but with ordinate (counts
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BOND LENGTHS (Å) FOR <b>MENZERITE</b>-(Y) AND ALMANDINE
Published: 01 October 2010
TABLE 4. BOND LENGTHS (Å) FOR MENZERITE-(Y) AND ALMANDINE
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POWDER-DIFFRACTION PATTERN OF <b>MENZERITE</b>-(Y)
Published: 01 October 2010
TABLE 5. POWDER-DIFFRACTION PATTERN OF MENZERITE-(Y)
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Micro-XANES spectra of <b>menzerite</b>-(Y) in the center of grain 5 (top) contras...
Published: 01 October 2010
F ig . 6. Micro-XANES spectra of menzerite-(Y) in the center of grain 5 (top) contrasted with the edge of the grain, which is almandine. Both spectra have prominent peaks at ca . 7111.6 eV and 7113.5 eV, but the areas are dramatically different, giving rise to weighted positions of 7113.1 eV
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COMPOSITIONS OF <b>MENZERITE</b>-(Y) IN SECTIONS GB50A1 AND GB50A2
Published: 01 October 2010
TABLE 6. COMPOSITIONS OF MENZERITE-(Y) IN SECTIONS GB50A1 AND GB50A2
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Plot of <b>menzerite</b>-(Y) compositions in terms of site occupancy and cation va...
Published: 01 October 2010
F ig . 7. Plot of menzerite-(Y) compositions in terms of site occupancy and cation valence (mole proportions). Numbers refer to grains in section GB50A1 used for the crystal-structure refinement (SREF), optical measurements, and menzerite-(Y) sensu stricto , including grain #5 used
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COMPOSITION OF <b>MENZERITE</b>-(Y) IN TERMS OF GARNET END-MEMBERS
Published: 01 October 2010
TABLE 8. COMPOSITION OF MENZERITE-(Y) IN TERMS OF GARNET END-MEMBERS