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hydrozincite

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Journal Article

Investigation of the hydrozincite structure by infrared and solid-state NMR spectroscopy Available to Purchase

Roberta Sanna, Giovanni De Giudici, Andrea Mariano Scorciapino, Costantino Floris, Mariano Casu
Published: 01 July 2013
American Mineralogist (2013) 98 (7): 1219–1226.
DOI: https://doi.org/10.2138/am.2013.4158
...Roberta Sanna; Giovanni De Giudici; Andrea Mariano Scorciapino; Costantino Floris; Mariano Casu Abstract To better understand lattice disorder in hydrozincite, natural hydrozincite samples and synthetic analogues were investigated by XRD, FTIR, 13 C MAS, and 13 C CPMAS NMR. The size of coherent...
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View PDF for article title, Investigation of the <span class="search-highlight">hydrozincite</span> structure by infrared and solid-state NMR spectroscopy
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Journal Article

Uptake of Cd in hydrozincite, Zn 5 (CO 3 ) 2 (OH) 6 : evidence from X-ray absorption spectroscopy and anomalous X-ray diffraction Available to Purchase

Pierfranco Lattanzi, Chiara Maurizio, Carlo Meneghini, Giovanni de Giudici, Francesca Podda
Published: 01 August 2010
European Journal of Mineralogy (2010) 22 (4): 557–564.
DOI: https://doi.org/10.1127/0935-1221/2010/0022-2053
...Pierfranco Lattanzi; Chiara Maurizio; Carlo Meneghini; Giovanni de Giudici; Francesca Podda Abstract The activity of a biological photosynthetic community promotes the seasonal precipitation of hydrozincite, Zn 5 (CO 3 ) 2 (OH) 6 , from heavy-metal contaminated waters of the Rio Naracauli stream...
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View PDF for article title, Uptake of Cd in <span class="search-highlight">hydrozincite</span>, Zn 5 (CO 3 ) 2 (OH) 6 : evidence from X-ray absorption spectroscopy and anomalous X-ray diffraction
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Journal Article

Structural properties of biologically controlled hydrozincite: An HRTEM and NMR spectroscopic study Available to Purchase

Giovanni De Giudici, Francesca Podda, Roberta Sanna, Elodia Musu, Riccardo Tombolini, Carla Cannas, Anna Musinu, Mariano Casu
Published: 01 November 2009
American Mineralogist (2009) 94 (11-12): 1698–1706.
DOI: https://doi.org/10.2138/am.2009.3181
...Giovanni De Giudici; Francesca Podda; Roberta Sanna; Elodia Musu; Riccardo Tombolini; Carla Cannas; Anna Musinu; Mariano Casu Abstract The microscopic properties of biomineral hydrozincite [Zn 5 (CO 3 ) 2 (OH) 6 ] from Naracauli Creek (SW Sardinia) were investigated by using X-ray diffraction (XRD...
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View PDF for article title, Structural properties of biologically controlled <span class="search-highlight">hydrozincite</span>: An HRTEM and NMR spectroscopic study
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Journal Article

Gibbs energies of formation for hydrocerussite [Pb(OH) 2 . (PbCO 3 ) 2 (S)] and hydrozincite [Zn(OH) 2 ] 3 . (ZnCO 3 ) 2 (S)] at 298 K and 1 bar from electrochemical cell measurements Available to Purchase

M. A. Mercy, Peter A. Rock, William H. Casey, Mehdi M. Mokarram
Published: 01 August 1998
American Mineralogist (1998) 83 (7-8): 739–745.
DOI: https://doi.org/10.2138/am-1998-7-806
...M. A. Mercy; Peter A. Rock; William H. Casey; Mehdi M. Mokarram Abstract New values are reported for the Gibbs energies of formation from the elements for hydrocerussite Pb(OH) 2 .(PbCO 3 ) 2 and hydrozincite [Zn(OH) 2 ] 3 .(ZnCO 3 ) 2 . These Delta G 0 f , values were obtained from electrochemical...
View PDF for article title, Gibbs energies of formation for hydrocerussite [Pb(OH) 2 . (PbCO 3 ) 2 (S)] and <span class="search-highlight">hydrozincite</span> [Zn(OH) 2 ] 3 . (ZnCO 3 ) 2 (S)] at 298 K and 1 bar from electrochemical cell measurements
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Add to Citation Manager for Gibbs energies of formation for hydrocerussite [Pb(OH) 2 . (PbCO 3 ) 2 (S)] and <span class="search-highlight">hydrozincite</span> [Zn(OH) 2 ] 3 . (ZnCO 3 ) 2 (S)] at 298 K and 1 bar from electrochemical cell measurements
Journal Article

The problem of stacking order in natural hydrozincite Available to Purchase

W. Zabinski
Published: 01 December 1966
The Canadian Mineralogist (1966) 8 (5): 649–652.
View PDF for article title, The problem of stacking order in natural <span class="search-highlight">hydrozincite</span>
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Journal Article

X-ray crystallography of aurichalcite and hydrozincite Available to Purchase

J. L. Jambor, G. Pouliot
Published: 01 December 1965
The Canadian Mineralogist (1965) 8 (3): 385–389.
... are given. The morphology of crystals from Mapimi, Mexico, is described; a reported perfect (100) cleavage could not be verified. Measured specific gravity is 3.96+ or -0.03. For hydrozincite from Goodsprings, Nev., known space group and unit cell dimensions were confirmed; twinning about (100) was observed...
View PDF for article title, X-ray crystallography of aurichalcite and <span class="search-highlight">hydrozincite</span>
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Journal Article

Studies of basic copper and zinc carbonates; Part 1, Synthetic zinc carbonates and their relationship to hydrozincite Available to Purchase

J. L. Jambor
Published: 01 December 1964
The Canadian Mineralogist (1964) 8 (1): 92–108.
View PDF for article title, Studies of basic copper and zinc carbonates; Part 1, Synthetic zinc carbonates and their relationship to <span class="search-highlight">hydrozincite</span>
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Journal Article

Natural and synthetic hydrozincites Available to Purchase

J. L. Jambor
Published: 01 December 1966
The Canadian Mineralogist (1966) 8 (5): 652–653.
...J. L. Jambor Abstract Continuous variations in cell dimensions in synthetic hydrozincites and the gradual changes in infrared curves in natural hydrozincites preclude dividing hydrozincites into an ordered and disordered phase. © 1966 Mineralogical Association of Canada 1966 ...
View PDF for article title, Natural and synthetic <span class="search-highlight">hydrozincites</span>
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(a) Crust formed by acicular paulišite crystals (Plš) with a thin hydrozincite (Hznc) layer and light blue hydrozincite at the contact with rock (holotype sample); (b) acicular crystals of paulišite with Zn-containing aragonite (Arg) aggregates and hemispherical aggregates of hydrozincite, BSE photo (holotype sample); (c) paulišite crust with thin layers of fine-grained Zn-bearing aragonite and intergrowths of hydrozincite and aragonite at the contact with rock; (d) elongated crystals of paulišite in association with calcite (Cal), aragonite and hydrozincite in monohydrocalcite (Mhcal) matrix, BSE photo.

( a ) Crust formed by acicular paulišite crystals (Plš) with a thin hydrozi... Available to Purchase

Published: 01 March 2025
Figure 1. ( a ) Crust formed by acicular paulišite crystals (Plš) with a thin hydrozincite (Hznc) layer and light blue hydrozincite at the contact with rock (holotype sample); ( b ) acicular crystals of paulišite with Zn-containing aragonite (Arg) aggregates and hemispherical aggregates
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Most representative nonsulfide samples. A. Early smithsonite (Sm1) replacing host rock, replaced in turn by spongy hydrozincite (Hyd1), cut by veinlets of compact hydrozincite (Hyd2); sample ZA-5. B. Hydrozincite crust with concretionary texture (Hyd3); sample ZA-7. C. Late hemimorphite veinlet (Hm2), cutting a mass of spongy hydrozincite (Hyd1) with patches of early hemimorphite (Hm1), mica group minerals (Ms) and fraipontite (Frp); sample ZB-2. D. Late smithsonite (Sm2) and compact to spongy hydrozincites (Hyd2 and Hyd3, respectively) cementing clasts of a collapse breccia consisting of early smithsonite (Sm1), replaced by spongy hydrozincite (Hyd1); sample ZB-3. E. Hemimorphite-rich gossanous material covered by crusts of concretionary hydrozincite (Hyd3) and manganous (hydr)oxides (mostly rancieite); sample ZA-0. F. Concretionary calcite growing on a goethite-impregnated material; sample ZA-9.

Most representative nonsulfide samples. A. Early smithsonite (Sm1) replacin... Available to Purchase

Published: 01 August 2017
Fig. 7. Most representative nonsulfide samples. A. Early smithsonite (Sm1) replacing host rock, replaced in turn by spongy hydrozincite (Hyd1), cut by veinlets of compact hydrozincite (Hyd2); sample ZA-5. B. Hydrozincite crust with concretionary texture (Hyd3); sample ZA-7. C. Late hemimorphite
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Backscattered electron images (BSE) of the most common Zn-bearing nonsulfide minerals. A. Compact hydrozincite (Hyd2) filling microcavities in the spongy variety (Hyd1); sample ZA-5. B. Crusts of late hemimorphite (Hm2) on the rim of goethite-rich zones (Gth), precede a layer of compact hydrozincite (Hyd2). Needle-shaped hydrozincite (Hyd3) fills the cavity; sample ZA-6. C. Needle-shaped hydrozincite (Hyd3) fills vugs into Cd- and Zn-rich layers of concretionary calcite with smithsonite (Sm2) remnants; sample ZA-9. D. Concretionary aggregates of needle-shaped hydrozincite (Hyd3); sample ZA-7. E. Early hemimorphite (Hm1) cementing quartz fragments; sample ZB-2. F. Early hemimorphite (Hm1) occurring in association with quartz (Qz) and muscovite (Ms) fragments; sample ZB-2. G. Spongy hydrozincite (Hyd2) replaces early smithsonite (Sm1); sample ZA-3. H. Crustiform layers of late smithsonite (Sm2) and compact hydrozincite (Hyd2); sample ZB-3. I. Late smithsonite (Sm2) filling vugs in Zn-rich concretionary calcite; sample ZA-2.

Backscattered electron images (BSE) of the most common Zn-bearing nonsulfid... Available to Purchase

Published: 01 August 2017
Fig. 8. Backscattered electron images (BSE) of the most common Zn-bearing nonsulfide minerals. A. Compact hydrozincite (Hyd2) filling microcavities in the spongy variety (Hyd1); sample ZA-5. B. Crusts of late hemimorphite (Hm2) on the rim of goethite-rich zones (Gth), precede a layer of compact
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FTIR spectra of WM9 and WM13 hemimorphite and hydrozincite samples (a and b). The enlargement at the bottom (b) better shows the region 1800–400 cm–1.

FTIR spectra of WM9 and WM13 hemimorphite and hydrozincite samples ( a and... Available to Purchase

Published: 01 May 2018
Figure 2. FTIR spectra of WM9 and WM13 hemimorphite and hydrozincite samples ( a and b ). The enlargement at the bottom ( b ) better shows the region 1800–400 cm –1 .
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Fourier transforms of EXAFS spectra. In hydrozincite, shells beyond the second are weak and ill-defined.

Fourier transforms of EXAFS spectra. In hydrozincite, shells beyond the sec... Available to Purchase

Published: 01 August 2010
Fig. 4. Fourier transforms of EXAFS spectra. In hydrozincite, shells beyond the second are weak and ill-defined.
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Equilibrium relationship for hydrozincite [Zn5(CO3)2(OH)6] and Zn2CO3(OH)2.

Equilibrium relationship for hydrozincite [Zn 5 (CO 3 ) 2 (OH) 6 ] and Zn 2... Available to Purchase

Published: 01 January 2010
F igure 1. Equilibrium relationship for hydrozincite [Zn 5 (CO 3 ) 2 (OH) 6 ] and Zn 2 CO 3 (OH) 2 .
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(a) Zincite covered by products of decomposition (mixture of hydrozincite and sulfates?). (b) Fine inter-growths of barite and mimetite. (c) Crystal of anglesite. (d) Hedyphane needles in a vesicle in slag. (e) Needles of secondary zincite covered by bryanyoungite. (f) Zn-dominant spinel (gahnite) covered by decomposition products containing Si and Al. (g) Small “flowers” of an unknown Zn, Pb, Al, Si phase. (h) Accumulations of secondary willemite.

(a) Zincite covered by products of decomposition (mixture of hydrozincite a... Available to Purchase

Published: 01 October 2008
F ig . 3. (a) Zincite covered by products of decomposition (mixture of hydrozincite and sulfates?). (b) Fine inter-growths of barite and mimetite. (c) Crystal of anglesite. (d) Hedyphane needles in a vesicle in slag. (e) Needles of secondary zincite covered by bryanyoungite. (f) Zn-dominant
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Time-resolved luminescence spectra of hydrozincite at 266 nm laser excitation (a) and excitation spectrum of emission band at 430 nm (b).

Time-resolved luminescence spectra of hydrozincite at 266 nm laser excitati... Available to Purchase

Published: 01 November 2002
Fig. 4. Time-resolved luminescence spectra of hydrozincite at 266 nm laser excitation (a) and excitation spectrum of emission band at 430 nm (b).
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Textures of hemimorphite, smithsonite, and calcite in thin sections. A, B. Fan-shaped aggregates of platy hemimorphite crystals filling fracture in spongy hydrozincite (Hyd1)/early hemimorphite (Hm1) mixture; sample ZB-2 (N II, N+). C, D. Crustiform layers of late smithsonite (Sm2) alternated with compact hydrozincite (Hyd2). Needle-shaped hydrozincite fills final porosity; sample ZB-3 (N II, N+). E, F. Compact hydrozincite (hyd2) interbedded with Cd- and Zn-rich layers of concretionary calcite (CC Cal); sample ZA-9 (N II, N+).

Textures of hemimorphite, smithsonite, and calcite in thin sections. A, B. ... Available to Purchase

Published: 01 August 2017
Fig. 9. Textures of hemimorphite, smithsonite, and calcite in thin sections. A, B. Fan-shaped aggregates of platy hemimorphite crystals filling fracture in spongy hydrozincite (Hyd1)/early hemimorphite (Hm1) mixture; sample ZB-2 (N II, N+). C, D. Crustiform layers of late smithsonite (Sm2
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Near-edge region of the XAS spectra collected on the measured samples (right panel), with their derivatives (left panel), vertically shifted for the sake of clarity. The spectra (and their derivatives) for hydrozincite samples (lower curves: S, synthetic hydrozincite; N, natural hydrozincite) appear different from those of the reference compounds (upper curves; Cd/CaCO3 = Cd-bearing calcite).

Near-edge region of the XAS spectra collected on the measured samples (righ... Available to Purchase

Published: 01 August 2010
Fig. 2. Near-edge region of the XAS spectra collected on the measured samples (right panel), with their derivatives (left panel), vertically shifted for the sake of clarity. The spectra (and their derivatives) for hydrozincite samples (lower curves: S, synthetic hydrozincite; N, natural
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δ13C and δ18O values of carbonate minerals at Mina Grande, and comparison with published isotope values. Cal = supergene calcite in Zn nonsulfide deposits field (Gilg et al., 2008); CC Cal = concretionary calcite; Dol = saddle dolomite; FF Cal = fracture filling calcite paragenetically following sphalerite (Reid, 2001); HR Cal = host rock calcite; HY Dol = hydrothermal dolomite in the Bongará district (Reid, 2001); Hyd1 = spongy hydrozincite; Hyd2 = compact hydrozincite; Hyd3 = needle-shaped hydrozincite; Mix. Hyd = mixture of Hyd1, 2, and 3; Sm = supergene smithsonite field (Gilg et al., 2008); Sm1 = host-rock replacive smithsonite; Sm2 = concretionary smithsonite.

δ 13 C and δ 18 O values of carbonate minerals at Mina Grande, and comparis... Available to Purchase

Published: 01 August 2017
paragenetically following sphalerite ( Reid, 2001 ); HR Cal = host rock calcite; HY Dol = hydrothermal dolomite in the Bongará district ( Reid, 2001 ); Hyd1 = spongy hydrozincite; Hyd2 = compact hydrozincite; Hyd3 = needle-shaped hydrozincite; Mix. Hyd = mixture of Hyd1, 2, and 3; Sm = supergene smithsonite field
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Paragenesis and timing of the hydrothermal and supergene minerals in the Mina Grande deposit. Hm1 = hemimorphite after the first oxidation stage; Hyd1 = stage 1 hydrozincite after the first oxidation stage; Hm2 and Hyd2 = later hemimorphite and hydrozincite after the postoxidation stage 1; Sm1 = smithsonite of stage 1 replacing the host rock; Sm2 = concretionary smithsonite of oxidation stage 2.

Paragenesis and timing of the hydrothermal and supergene minerals in the Mi... Available to Purchase

Published: 01 August 2017
Fig. 13. Paragenesis and timing of the hydrothermal and supergene minerals in the Mina Grande deposit. Hm1 = hemimorphite after the first oxidation stage; Hyd1 = stage 1 hydrozincite after the first oxidation stage; Hm2 and Hyd2 = later hemimorphite and hydrozincite after the postoxidation stage