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chalcophanite

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Journal Article

Time-resolved synchrotron X-ray diffraction study of the dehydration behavior of chalcophanite Available to Purchase

Jeffrey E. Post, Peter J. Heaney
Published: 01 October 2014
American Mineralogist (2014) 99 (10): 1956–1961.
DOI: https://doi.org/10.2138/am-2014-4760
...Jeffrey E. Post; Peter J. Heaney Abstract Time-resolved synchrotron X-ray powder diffraction data were used to investigate the dehydration behavior of the chalcophanite (ZnMn 3 O 7 ·3H 2 O) structure from 300 to 1060 K. Rietveld refinements revealed two obvious phase changes, at ~450 and ~950 K...
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View PDF for article title, Time-resolved synchrotron X-ray diffraction study of the dehydration behavior of <span class="search-highlight">chalcophanite</span>
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Journal Article

Lithiophorite and Chalcophanite as Secondary Mn-Oxides in Chromite Ores of Sukinda, Orissa, India Available to Purchase

S. K. Das, R. K. Sahoo, A. K. Paul, G. Friedrich
Published: 01 November 1996
Jour. Geol. Soc. India (1996) 48 (5): 583–587.
DOI: https://doi.org/10.17491/jgsi/1996/480511
...S. K. Das; R. K. Sahoo; A. K. Paul; G. Friedrich Copyright © 1996 Geological Society of India 1996 Geological Society of India JOURNAL GEOLOGICAL SOCIETY OF INDIA Vo1.48. Nov. 1996, pp. 583-587 Lithiophorite and Chalcophanite as Secondary MD..Oxides in Chromite Ores of Sukinda, Orissa, Kndia...
View PDF for article title, Lithiophorite and <span class="search-highlight">Chalcophanite</span> as Secondary Mn-Oxides in Chromite Ores of Sukinda, Orissa, India
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Journal Article

Occurrence of Copper Bearing Chalcophanite from Gottivada Manganese Ores, Eastern Ghats, Andhra Pradesh Available to Purchase

B. V. K. Raju, N. Murali Sivaram, B. S. Ganga Rao, K. K. V. S. Raju
Published: 01 May 1996
Jour. Geol. Soc. India (1996) 47 (5): 621–624.
DOI: https://doi.org/10.17491/jgsi/1996/470511
...B. V. K. Raju; N. Murali Sivaram; B. S. Ganga Rao; K. K. V. S. Raju Copyright © 1996 Geological Society of India 1996 Geological Society of India JOURNAL GEOLOGICAL SOCIETY OF INDIA VoL47, May 1996, pp. 621-624 SHORT COMMUN][CA1IONS Occurrence of Copper Bearing Chalcophanite from Gottivada...
View PDF for article title, Occurrence of Copper Bearing <span class="search-highlight">Chalcophanite</span> from Gottivada Manganese Ores, Eastern Ghats, Andhra Pradesh
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Journal Article

Ernienickelite, NiMn 3 O 7 .3H 2 O, a new mineral species from the Siberia Complex, Western Australia; comments on the crystallography of the chalcophanite group Available to Purchase

J. D. Grice, B. Gartrell, R. A. Gault, Jerry Van Velthuizen
Published: 01 June 1994
The Canadian Mineralogist (1994) 32 (2): 333–337.
View PDF for article title, Ernienickelite, NiMn 3 O 7 .3H 2 O, a new mineral species from the Siberia Complex, Western Australia; comments on the crystallography of the <span class="search-highlight">chalcophanite</span> group
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Journal Article

Chalcophanite, ZnMn 3 O 7 .3H 2 O; new crystal-structure determinations Available to Purchase

Jeffrey E. Post, Daniel E. Appleman
Published: 01 December 1988
American Mineralogist (1988) 73 (11-12): 1401–1404.
...Jeffrey E. Post; Daniel E. Appleman Abstract Single-crystal X-ray structure refinements of the layer zinc-manganese oxide mineral chalcophanite, using crystals from Bisbee, Arizona, and Sterling Hill, New Jersey, yielded unit-cell parameters a = 7.533(3) Å, c = 20.794(7) Å (Bisbee) and a = 7.541(3...
View PDF for article title, <span class="search-highlight">Chalcophanite</span>, ZnMn 3 O 7 .3H 2 O; new crystal-structure determinations
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Journal Article

A magnesium analogue of chalcophanite in manganese-rich concretions from Baja California Available to Purchase

R. M. Potter, G. R. Rossman
Published: 01 December 1979
American Mineralogist (1979) 64 (11-12): 1227–1229.
..., and chemical analyses indicate that the manganese oxide has the chalcophanite structure. The high concentration of magnesium, presumed to occur in the interlayer position of this mineral, suggests that it is the magnesium analogue of chalcophanite and extends the known range of substitution in chalcophanite...
View PDF for article title, A magnesium analogue of <span class="search-highlight">chalcophanite</span> in manganese-rich concretions from Baja California
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Image
Structure drawings of: (a) chalcophanite, (b) anhydrous chalcophanite, and (c) Mn-rich hetaerolite. Mn-O octahedra are colored pink, and Zn-O polyhedra are yellow. The O atoms are indicated by red and blue [O(3)] spheres. For all three structures the c axis is vertical. (Color online.)

Structure drawings of: ( a ) chalcophanite, ( b ) anhydrous chalcophanite, ... Available to Purchase

Published: 01 October 2014
Figure 1 Structure drawings of: ( a ) chalcophanite, ( b ) anhydrous chalcophanite, and ( c ) Mn-rich hetaerolite. Mn-O octahedra are colored pink, and Zn-O polyhedra are yellow. The O atoms are indicated by red and blue [O(3)] spheres. For all three structures the c axis is vertical. (Color
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Final observed (red crosses), calculated (green solid line), and difference (purple below) powder X-ray diffraction patterns from the Rietveld refinement for: (a) chalcophanite, (b) anhydrous chalcophanite, and (c) Mn-rich hetaerolite. The Bragg reflections are marked by the set of small vertical lines. (Color online.)

Final observed (red crosses), calculated (green solid line), and difference... Available to Purchase

Published: 01 October 2014
Figure 2 Final observed (red crosses), calculated (green solid line), and difference (purple below) powder X-ray diffraction patterns from the Rietveld refinement for: ( a ) chalcophanite, ( b ) anhydrous chalcophanite, and ( c ) Mn-rich hetaerolite. The Bragg reflections are marked by the set
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Raman spectra (532 nm) for (a) chalcophanite (NJ #C1814) with crystals oriented with MnO6 octahedral sheets parallel (top) and perpendicular (bottom) to the laser polarization direction, and (b) chalcophanite (NJ #C1814) and ernienickelite (#171561) showing OH stretch modes with the polarization symbol indicating laser polarization perpendicular to the MnO6 octahedral sheets (or laser light direction parallel to MnO6 octahedral sheets).

Raman spectra (532 nm) for ( a ) chalcophanite (NJ #C1814) with crystals or... Available to Purchase

Published: 01 March 2021
Figure 5. Raman spectra (532 nm) for ( a ) chalcophanite (NJ #C1814) with crystals oriented with MnO 6 octahedral sheets parallel (top) and perpendicular (bottom) to the laser polarization direction, and ( b ) chalcophanite (NJ #C1814) and ernienickelite (#171561) showing OH stretch modes
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CTR data collected from a chalcophanite surface in a clean state (red), after dosing with 100 mM CsCl solution (green), and after rinsing with DI water (blue). The 10L, 20L, and 11L rods experienced reversible modifications. Modifications to the 00L (specular) rod were partially reversed upon rinsing.

CTR data collected from a chalcophanite surface in a clean state (red), aft... Available to Purchase

Published: 01 December 2021
Fig. 4. CTR data collected from a chalcophanite surface in a clean state (red), after dosing with 100 mM CsCl solution (green), and after rinsing with DI water (blue). The 10L, 20L, and 11L rods experienced reversible modifications. Modifications to the 00L (specular) rod were partially reversed
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a Chalcophanite mounted by electrostatic attraction to diamond, which is affixed to a brass pin. b Sample crystals &lt;300 μm are mounted readily by this method. c Sample is covered by Kapton dome through which humidified helium is allowed to flow during measurement

a Chalcophanite mounted by electrostatic attraction to diamond, which is a... Available to Purchase

Published: 01 December 2021
Fig. 2. a Chalcophanite mounted by electrostatic attraction to diamond, which is affixed to a brass pin. b Sample crystals <300 μm are mounted readily by this method. c Sample is covered by Kapton dome through which humidified helium is allowed to flow during measurement
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Data collected from a chalcophanite crystal affixed to quartz with UV adhesive under deionized water (blue) are qualitatively similar to those collected from a different crystal attached by static attraction to diamond under humid helium (red). Black curves are calculated CTRs from a model that includes a layer of Zn and water at the surface, as shown in Fig. 1d, with no roughness or relaxation of atoms from bulk positions and occupancies

Data collected from a chalcophanite crystal affixed to quartz with UV adhes... Available to Purchase

Published: 01 December 2021
Fig. 7. Data collected from a chalcophanite crystal affixed to quartz with UV adhesive under deionized water (blue) are qualitatively similar to those collected from a different crystal attached by static attraction to diamond under humid helium (red). Black curves are calculated CTRs from
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(a) Raman modes determined from lattice dynamics (LD) calculations for chalcophanite (#C1814) plotted as vertical lines below their respective Raman spectra (633 nm), and (b) an eigenmode drawing of the highest calculated frequency Ag mode for chalcophanite: (110) projection with the c-axis vertical, showing MnO6 octahedral deformation, O-Mn-O bend and Mn-O stretch, and Zn-O stretch with Zn translating along the c-axis. (Color online.)

( a ) Raman modes determined from lattice dynamics (LD) calculations for ch... Available to Purchase

Published: 01 March 2021
Figure 6. ( a ) Raman modes determined from lattice dynamics (LD) calculations for chalcophanite (#C1814) plotted as vertical lines below their respective Raman spectra (633 nm), and ( b ) an eigenmode drawing of the highest calculated frequency A g mode for chalcophanite: (110) projection
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Raman spectra (633 nm) for chalcophanite (NJ #C1814) with plate-like crystals (and MnO6 octahedral sheets) perpendicular to incident laser light direction. Spectra are labeled Unpolarized (black), VV (blue), and VH (red). VV and VH spectra were collected using parallel and crossed polarization conditions, respectively. (Color online.)

Raman spectra (633 nm) for chalcophanite (NJ #C1814) with plate-like crysta... Available to Purchase

Published: 01 March 2021
Figure 2. Raman spectra (633 nm) for chalcophanite (NJ #C1814) with plate-like crystals (and MnO 6 octahedral sheets) perpendicular to incident laser light direction. Spectra are labeled Unpolarized (black), VV (blue), and VH (red). VV and VH spectra were collected using parallel and crossed
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Raman spectra for chalcophanite (NJ #C1814) collected using 532 (0.03 mW), 633 (0.05 mW), and 785 (0.11 mW) nm laser light. Spectra are rescaled and offset for clarity. (Color online.)

Raman spectra for chalcophanite (NJ #C1814) collected using 532 (0.03 mW), ... Available to Purchase

Published: 01 March 2021
Figure 3. Raman spectra for chalcophanite (NJ #C1814) collected using 532 (0.03 mW), 633 (0.05 mW), and 785 (0.11 mW) nm laser light. Spectra are rescaled and offset for clarity. (Color online.)
Image
Raman spectra (532 nm) for chalcophanite (NJ #C1814), ernienickelite (#171561), and jianshuiite (MD) with plate-like crystals (and MnO6 octahedral sheets) parallel to laser polarization (laser light direction perpendicular to plate-like crystals).

Raman spectra (532 nm) for chalcophanite (NJ #C1814), ernienickelite (#1715... Available to Purchase

Published: 01 March 2021
Figure 4. Raman spectra (532 nm) for chalcophanite (NJ #C1814), ernienickelite (#171561), and jianshuiite (MD) with plate-like crystals (and MnO 6 octahedral sheets) parallel to laser polarization (laser light direction perpendicular to plate-like crystals).
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A–F) SEM (scanning electron microscopy) images with secondary electron mode of the ore-bearing minerals. A, B) Pore-filling chalcophanite (Chalc) with flaky and crenulated fabric (white-colored) with dissolved magnesite (Mgs) and dolomite (Dol) crystals (dark gray). C) Pore-filling spherulitic chalcophanite and rhombohedral dolomite (D4). D, E) Rosette-like (Part D), tabular and amorphous aggregates (Part E) of Zn-bearing ferromanganese oxides. F) Bundle-like to tabular crystals of Zn-bearing ferromanganese oxides.

A–F) SEM (scanning electron microscopy) images with secondary electron mode... Available to Purchase

Published: 25 February 2022
Fig. 11.— A–F) SEM (scanning electron microscopy) images with secondary electron mode of the ore-bearing minerals. A , B) Pore-filling chalcophanite (Chalc) with flaky and crenulated fabric (white-colored) with dissolved magnesite (Mgs) and dolomite (Dol) crystals (dark gray). C) Pore
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Plots of: (a) unit-cell volume and (b) c for chalcophanite for the temperature range 300 to 438 K. Calculated e.s.d. values fall within the areas of the plotting symbols. (Color online.)

Plots of: ( a ) unit-cell volume and ( b ) c for chalcophanite for the te... Available to Purchase

Published: 01 October 2014
Figure 4 Plots of: ( a ) unit-cell volume and ( b ) c for chalcophanite for the temperature range 300 to 438 K. Calculated e.s.d. values fall within the areas of the plotting symbols. (Color online.)
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Polyhedral structure drawings for: (a) anhydrous chalcophanite and (b) Mn-rich hetaerolite projected down c. Mn-O octahedra are colored pink, and Zn-O polyhedra are yellow. The O atoms are indicated by red and blue [O(3)] spheres. (Color online.)

Polyhedral structure drawings for: ( a ) anhydrous chalcophanite and ( b ) ... Available to Purchase

Published: 01 October 2014
Figure 5 Polyhedral structure drawings for: ( a ) anhydrous chalcophanite and ( b ) Mn-rich hetaerolite projected down c . Mn-O octahedra are colored pink, and Zn-O polyhedra are yellow. The O atoms are indicated by red and blue [O(3)] spheres. (Color online.)
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Near-IR spectra of H-, Na-, Ca-, and Pb-birnessites and chalcophanite. Absorption between 4800–5200 cm−1 is assigned to a combination mode of H2O; the mode at ~4650 cm−1 in the H-birnessite spectrum is due to a combination mode of OH or H3O+.

Near-IR spectra of H-, Na-, Ca-, and Pb-birnessites and chalcophanite. Abso... Available to Purchase

Published: 01 April 2006
A ppendix F igure 1. Near-IR spectra of H-, Na-, Ca-, and Pb-birnessites and chalcophanite. Absorption between 4800–5200 cm −1 is assigned to a combination mode of H 2 O; the mode at ~4650 cm −1 in the H-birnessite spectrum is due to a combination mode of OH or H 3 O + .