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hopeite

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Journal Article

Nizamoffite, Mn 2+ Zn 2 (PO 4 ) 2 (H 2 O) 4 , the Mn analogue of hopeite from the Palermo No. 1 pegmatite, North Groton, New Hampshire Available to Purchase

Anthony R. Kampf, Alexander U. Falster, William B. Simmons, Robert W. Whitmore
Published: 01 October 2013
American Mineralogist (2013) 98 (10): 1893–1898.
DOI: https://doi.org/10.2138/am.2013.4491
...); 3.424(52)(240,221); 2.873(100)(241); 2.644(36)(400,331); 2.540(33)(420,161,002); and 1.953(36)(281). Nizamoffite is isostructural with hopeite. The structure ( R 1 = 1.7% for 1014 F o > 4σ F ) contains corner-sharing zigzag chains of ZnO 4 tetrahedra along [001]. The chains are connected by corner...
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View PDF for article title, Nizamoffite, Mn 2+ Zn 2 (PO 4 ) 2 (H 2 O) 4 , the Mn analogue of <span class="search-highlight">hopeite</span> from the Palermo No. 1 pegmatite, North Groton, New Hampshire
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Journal Article

Thermal expansion of deuterated hopeite, Zn 3 (PO 4 ) 2 ·4D 2 O Available to Purchase

Paul F. Schofield, Kevin S. Knight, Mark E. Hodson, Anna M. Lanfranco
Published: 01 July 2007
American Mineralogist (2007) 92 (7): 1038–1047.
DOI: https://doi.org/10.2138/am.2007.2099
...Paul F. Schofield; Kevin S. Knight; Mark E. Hodson; Anna M. Lanfranco Abstract The lattice parameters extracted from Lebail analysis of neutron powder diffraction data collected between 2 and 300 K have been used to calculate the temperature evolution of the thermal expansion tensor for hopeite, Zn...
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View PDF for article title, Thermal expansion of deuterated <span class="search-highlight">hopeite</span>, Zn 3 (PO 4 ) 2 ·4D 2 O
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Journal Article

Carbonate-hydroxylapatite, hopeite, and parascholzite in fibrous capsules surrounding silicone breast implants Available to Purchase

Catherine Rolland, Robert Guidoin, Robert Ledoux, Amina Zerguini, Paul-Emile Roy
Published: 01 June 1991
The Canadian Mineralogist (1991) 29 (2): 337–345.
View PDF for article title, Carbonate-hydroxylapatite, <span class="search-highlight">hopeite</span>, and parascholzite in fibrous capsules surrounding silicone breast implants
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Journal Article

The crystal structure of hopeite Available to Purchase

R. J. Hill, J. B. Jones
Published: 01 October 1976
American Mineralogist (1976) 61 (9-10): 987–995.
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The crystal structures of hopeite and parahopeite: (a) hopeite projected onto (010); (b) hopeite projected onto (001); hydrogen bonds are omitted for clarity; (c) parahopeite projected onto (010); (d) parahopeite projected onto (001). (Znϕ4) tetrahedra and (Znϕ6) octahedra are shadow-shaded.

The crystal structures of hopeite and parahopeite: (a) hopeite projected on... Available to Purchase

Published: 01 January 2002
Figure 11. The crystal structures of hopeite and parahopeite: (a) hopeite projected onto (010); (b) hopeite projected onto (001); hydrogen bonds are omitted for clarity; (c) parahopeite projected onto (010); (d) parahopeite projected onto (001). (Znϕ 4 ) tetrahedra and (Znϕ 6 ) octahedra
Image
Hydrogen bonding in nizamoffite, α-hopeite, and β-hopeite. Hydrogen bonds are shown as thin black lines. The gray spheres are the octahedrally coordinated cations and the bonds to the O atoms surrounding them are shown as sticks. Oxygen atoms in the nizamoffite structure are labeled with numbers and H atoms with letters as appropriate.

Hydrogen bonding in nizamoffite, α-hopeite, and β-hopeite. Hydrogen bonds a... Available to Purchase

Published: 01 October 2013
Figure 4 Hydrogen bonding in nizamoffite, α-hopeite, and β-hopeite. Hydrogen bonds are shown as thin black lines. The gray spheres are the octahedrally coordinated cations and the bonds to the O atoms surrounding them are shown as sticks. Oxygen atoms in the nizamoffite structure are labeled
Image
SEM image of a spray of bright blue-green zincolibethenite crystals on colourless platy hopeite crystals, Kabwe, Zambia. Z = zincolibethenite, H = hopeite.

SEM image of a spray of bright blue-green zincolibethenite crystals on colo... Available to Purchase

Published: 01 April 2005
F ig . 1. SEM image of a spray of bright blue-green zincolibethenite crystals on colourless platy hopeite crystals, Kabwe, Zambia. Z = zincolibethenite, H = hopeite.
Journal Article

Arsenohopeite, a new zinc arsenate mineral from the Tsumeb mine, Namibia Available to Purchase

F. Neuhold, U. Kolitsch, H.-J. Bernhardt, C. L. Lengauer
Published: 01 June 2012
Mineralogical Magazine (2012) 76 (3): 603–612.
DOI: https://doi.org/10.1180/minmag.2012.076.3.11
...F. Neuhold; U. Kolitsch; H.-J. Bernhardt; C. L. Lengauer Abstract Arsenohopeite, ideally Zn 3 (AsO 4 ) 2 ·4H 2 O, is the arsenate analogue of hopeite, Zn 3 (PO 4 ) 2 ·4H 2 O (it is isostructural with α-hopeite). It was found as a single colourless to blue crystalline grain from the Tsumeb mine...
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Diffraction data (crosses) from the 90° detector bank of HRPD, their calculated fits (solid lines) difference curve and calculated reflection positions (vertical tick marks) for hopeite at 2 K collected for 400 μAh (top), hopeite at 50 K collected for 10 μAh (middle) and zinc phosphate dihydrate at 380 K collected for 20 μAh (bottom).

Diffraction data (crosses) from the 90° detector bank of HRPD, their calcul... Available to Purchase

Published: 01 July 2007
F igure 3. Diffraction data (crosses) from the 90° detector bank of HRPD, their calculated fits (solid lines) difference curve and calculated reflection positions (vertical tick marks) for hopeite at 2 K collected for 400 μAh (top), hopeite at 50 K collected for 10 μAh (middle) and zinc
Journal Article

A new mineral, zincolibethenite, CuZnPO 4 OH, a stoichiometric species of specific site occupancy Available to Purchase

R. S. W. Braithwaite, R. G. Pritchard, W. H. Paar, R. A. D. Pattrick
Published: 01 April 2005
Mineralogical Magazine (2005) 69 (2): 145–153.
DOI: https://doi.org/10.1180/0026461056920242
...F ig . 1. SEM image of a spray of bright blue-green zincolibethenite crystals on colourless platy hopeite crystals, Kabwe, Zambia. Z = zincolibethenite, H = hopeite. ...
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Journal Article

Classification of minerals of the type A 3 (XO4)2· n H 2 O (Concluded) Available to Purchase

C. W. Wolfe
Published: 01 December 1940
American Mineralogist (1940) 25 (12): 787–809.
...C. W. Wolfe Abstract This family is composed of the triclinic group—parahopeite and anapaite; the monoclinic member—phosphophyllite; and the orthorhombic member—hopeite. The relations between the unit cells of phosphophyllite and hopeite are simple and are given in the description of the former...
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DTA and TG profile of deuterated α-hopeite with a heating rate of 10 K/min.

DTA and TG profile of deuterated α-hopeite with a heating rate of 10 K/min.... Available to Purchase

Published: 01 July 2007
F igure 1. DTA and TG profile of deuterated α-hopeite with a heating rate of 10 K/min.
Image
Zn K-edge XANES from (top) hopeite and (middle) bonemeal reacted with Zn in solution, and (bottom) a bonemeal particle from within the treated Parys Mountain soil.

Zn K-edge XANES from (top) hopeite and (middle) bonemeal reacted with Zn in... Available to Purchase

Published: 01 February 2008
F ig . 2. Zn K-edge XANES from (top) hopeite and (middle) bonemeal reacted with Zn in solution, and (bottom) a bonemeal particle from within the treated Parys Mountain soil.
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Infrared absorption spectra for deuterated and protonated α-hopeite in the region 4000 to 1300 cm−1 (top) showing the internal modes of the H2O/D2O molecules and in the region 1200 to 400 cm−1 (bottom) showing the internal modes of the phosphate molecules and librational modes (R) of the H2O/D2O molecules.

Infrared absorption spectra for deuterated and protonated α-hopeite in the ... Available to Purchase

Published: 01 July 2007
F igure 2. Infrared absorption spectra for deuterated and protonated α-hopeite in the region 4000 to 1300 cm −1 (top) showing the internal modes of the H 2 O/D 2 O molecules and in the region 1200 to 400 cm −1 (bottom) showing the internal modes of the phosphate molecules and librational
Image
Variation of the lattice parameters of hopeite within the temperature range 2 ≤ T ≤ 300 K. The calculated fits (solid lines) are represented by Einstein functions for a, c, and V, and by an empirical logistic function for b.

Variation of the lattice parameters of hopeite within the temperature range... Available to Purchase

Published: 01 July 2007
F igure 4. Variation of the lattice parameters of hopeite within the temperature range 2 ≤ T ≤ 300 K. The calculated fits (solid lines) are represented by Einstein functions for a , c , and V , and by an empirical logistic function for b .
Image
Representation of the crystal structure of hopeite after Whitaker (1975). (a) The tetrahedral sheet comprising layers of PO4 tetrahedra and 1 layer of ZnO4 tetrahedra. The filled tetrahedra are PO4, tetrahedral Zn are small shaded circles, the O atoms of the water molecules are larger, darker filled circles and the protons are white. (b) The layer of ZnO6 octahedra between the tetrahedral sheets with PO4 represented by filled tetrahedra, the Zn atoms are small shaded circles, the O atoms of the water molecules are larger, darker filled circles and the protons are white.

Representation of the crystal structure of hopeite after Whitaker (1975) .... Available to Purchase

Published: 01 July 2007
F igure 6. Representation of the crystal structure of hopeite after Whitaker (1975) . ( a ) The tetrahedral sheet comprising layers of PO 4 tetrahedra and 1 layer of ZnO 4 tetrahedra. The filled tetrahedra are PO 4 , tetrahedral Zn are small shaded circles, the O atoms of the water molecules
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Variation of the lattice parameters of the hopeite subhydrate Zn3(PO4)2·2H2O within the temperature range 335 ≤ T ≤ 480 K. The calculated fits are empirically represented by a quadratic of the form X = X0 + dT + fT2 where X0 represents the 0 K cell parameter value and d and f are constants.

Variation of the lattice parameters of the hopeite subhydrate Zn 3 (PO 4 ) ... Available to Purchase

Published: 01 July 2007
F igure 7. Variation of the lattice parameters of the hopeite subhydrate Zn 3 (PO 4 ) 2 ·2H 2 O within the temperature range 335 ≤ T ≤ 480 K. The calculated fits are empirically represented by a quadratic of the form X = X 0 + dT + fT 2 where X 0 represents the 0 K cell parameter
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Reflectance spectra of Pb and Zn ‘phosphate’ minerals: 1, hopeite;2, scholzite; 3, tarbuttite;4, pyromorphite; 5, parahopeite;6, veszelyite.

Reflectance spectra of Pb and Zn ‘phosphate’ minerals: 1, hopeite;2, scholz... Available to Purchase

Published: 01 May 2007
Fig. 4 Reflectance spectra of Pb and Zn ‘phosphate’ minerals: 1, hopeite;2, scholzite; 3, tarbuttite;4, pyromorphite; 5, parahopeite;6, veszelyite.
Journal Article

Sperlingite, (H 2 O)K(Mn 2+ Fe 3+ )(Al 2 Ti)(PO 4 ) 4 [O(OH)][(H 2 O) 9 (OH)]⋅4H 2 O, a new paulkerrite-group mineral, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany Open Access

Christian Rewitzer, Rupert Hochleitner, Ian E. Grey, Anthony R. Kampf, Stephanie Boer, Colin M. MacRae, William G. Mumme, Nicholas C. Wilson, Cameron J. Davidson
Published: 20 May 2024
Mineralogical Magazine (2024) 88 (5): 576–584.
DOI: https://doi.org/10.1180/mgm.2024.40
... of the paulkerrite group, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany. It was found in corrosion pits of altered zwieselite, in association with columbite, hopeite, leucophosphite, mitridatite, scholzite, orange–brown zincoberaunite sprays and tiny green crystals of zincolibethenite. Sperlingite...
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View PDF for article title, Sperlingite, (H 2 O)K(Mn 2+ Fe 3+ )(Al 2 Ti)(PO 4 ) 4 [O(OH)][(H 2 O) 9 (OH)]⋅4H 2 O, a new paulkerrite-group mineral, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany
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Temperature dependence of the thermal expansion tensor coefficients, α11, α22, and α33, of hopeite as calculated from the mathematical fits of the lattice parameters.

Temperature dependence of the thermal expansion tensor coefficients, α 11 ,... Available to Purchase

Published: 01 July 2007
F igure 5. Temperature dependence of the thermal expansion tensor coefficients, α 11 , α 22 , and α 33 , of hopeite as calculated from the mathematical fits of the lattice parameters.