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quintinite

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Journal Article
Published: 01 December 1997
The Canadian Mineralogist (1997) 35 (6): 1541–1549.
Journal Article
Published: 24 March 2022
Mineralogical Magazine (2022) 86 (2): 282–306.
..., fluorapatite, baryte, barytocalcite, cancrinite, galena, goethite, gonnardite, harmotome, edingtonite, a potentially new Mg-bearing edingtonite-like mineral, natrolite, nordstrandite, pyrite, quintinite and sphalerite. Alteration of the primary silicate–carbonate assemblage has resulted in a secondary...
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Journal Article
Published: 01 April 2018
Mineralogical Magazine (2018) 82 (2): 329–346.
...Elena S. Zhitova; Sergey V. Krivovichev; Viktor N. Yakovenchuk; Gregory Yu. Ivanyuk; Yakov A. Pakhomovsky; Julia A. Mikhailova Abstract Two quintinite polytypes, 3 R and 2 T , which are new for the Kovdor alkaline-ultrabasic complex, have been structurally characterized. The crystal structure...
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Journal Article
Published: 01 October 2010
Mineralogical Magazine (2010) 74 (5): 821–832.
...S. V. Krivovichev; V. N. Yakovenchuk; E. S. Zhitova; A. A. Zolotarev; Y. A. Pakhomovsky; G. Yu. Ivanyuk Abstract The crystal structure of quintinite-2 H -3 c , [Mg 4 Al 2 (OH) 12 ](CO 3 )(H 2 O) 3 , from the Kovdor alkaline massif, Kola peninsula, Russia, was solved by direct methods and refined...
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Journal Article
Published: 01 October 2010
Mineralogical Magazine (2010) 74 (5): 833–840.
...S. V. Krivovichev; V. N. Yakovenchuk; E. S. Zhitova; A. A. Zolotarev; Y. A. Pakhomovsky; G. Yu. Ivanyuk Abstract Quintinite-1 M , [Mg 4 Al 2 (OH) 12 ](CO 3 )(H 2 O) 3 , is the first monoclinic representative of both synthetic and natural layered double hydroxides (LDHs) based on octahedrally...
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Journal Article
Published: 01 October 2010
Mineralogical Magazine (2010) 74 (5): 841–848.
...E. S. Zhitova; V.N. Yakovenchuk; S.V. Krivovichev; A. A. Zolotarev; Y.A. Pakhomovsky; G. Yu. Ivanyuk Abstract Two crystals of Mg,Al-disordered quintinite-2 H (Q1 and Q2), [Mg 4 Al 2 (OH) 12 ](CO 3 )(H 2 O) 3 , from the Kovdor alkaline massif, Kola peninsula, Russia, have been characterized...
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Image
(a) Photomicrograph of <span class="search-highlight">quintinite</span> from Mount Mather Creek. Field of view = ...
Published: 24 March 2022
Fig. 19. (a) Photomicrograph of quintinite from Mount Mather Creek. Field of view = 2 mm, crystal = 80 × 60 μm (copyright Q. Wight; CMNMC 90163). (b) Back-scattered electron images of single crystals of quintinite showing the characteristic epitactic “cap”. The quintinite is coated by a druse
Image
Back-scattered electron images of rounded inclusions of <span class="search-highlight">quintinite</span> in the m...
Published: 01 April 2018
Fig. 2. Back-scattered electron images of rounded inclusions of quintinite in the marginal zone of a magnetite grain ( a ); and relics of spinel in euhedral inclusions of quintinite in magnetite ( b ). Quin – quintinite, Mag – magnetite, Spl – spinel, Bdy – baddeleyite, Fo – forsterite and Phl
Image
Local arrangement of atoms in the metal–hydroxide layer: ( a ) <span class="search-highlight">quintinite</span> a...
Published: 13 February 2020
Fig. 8. Local arrangement of atoms in the metal–hydroxide layer: ( a ) quintinite and ( b ) akopovaite; schemes of bond-valence distribution (in valence units = vu) for O atoms in the metal–hydroxide layer: ( c ) quintinite and ( d ) akopovaite.
Journal Article
Published: 13 September 2021
The Canadian Mineralogist (2021) 59 (4): 763–769.
... formula (Zn 3.25 Mg 0.17 Cr 2.58 ) Σ6.00 (OH) 12 (CO 3 ) 1.29 ·3H 2 O, based on ( M 2+ + M 3+ ) = 6 apfu , where M 2+ and M 3+ are divalent and trivalent cations, respectively. Liudongshengite belongs to the quintinite group within the hydrotalcite supergroup and is the Cr-analogue of zaccagnaite-3 R , Zn...
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Journal Article
Published: 13 February 2020
Mineralogical Magazine (2020) 84 (2): 301–311.
...Fig. 8. Local arrangement of atoms in the metal–hydroxide layer: ( a ) quintinite and ( b ) akopovaite; schemes of bond-valence distribution (in valence units = vu) for O atoms in the metal–hydroxide layer: ( c ) quintinite and ( d ) akopovaite. ...
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Journal Article
Published: 01 October 2016
Mineralogical Magazine (2016) 80 (6): 1023–1029.
..., whose crystal structure was determined by Allmann and Jepsen (1969) was reported by them to have the composition Mg 4 Al 2 (OH) 12 [CO 3 ]·3H 2 O, which would make it a 3 R polytype of the mineral quintinite ( Chao and Gault, 1997 ) rather than true hydrotalcite. In fact, there was a need to verify...
FIGURES
Image
Crystal structure of <span class="search-highlight">quintinite</span>-1 M .
Published: 01 October 2010
F ig . 3. Crystal structure of quintinite-1 M .
Journal Article
Published: 01 April 2019
Mineralogical Magazine (2019) 83 (2): 269–280.
... . However, in the current nomenclature scheme (Mills et al. , 2012 a ), this corresponds to quintinite, which differs from hydrotalcite in the M 2+ : M 3+ ratio (2:1 rather than 3:1). In general, quintinite and its synthetic analogues are very commonly reported as ‘hydrotalcite’ or ‘hydrotalcite-like...
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Image
Back-scattered electron image of drusy calcite in a vug with ancylite-(Ce),...
Published: 24 March 2022
Fig. 10. Back-scattered electron image of drusy calcite in a vug with ancylite-(Ce), chabazite-Na, quintinite and sodalite. Abreviations as in Fig. 4 .
Image
Characteristic IR spectrum of Kovdor <span class="search-highlight">quintinite</span> with  M  2+ : М  3+  = 2:1....
Published: 01 April 2018
Fig. 4. Characteristic IR spectrum of Kovdor quintinite with M 2+ : М 3+  = 2:1.
Image
Crystals of <span class="search-highlight">quintinite</span>-2 H -3 c  from the Kovdor alkaline massif.
Published: 01 October 2010
F ig . 4. Crystals of quintinite-2 H -3 c from the Kovdor alkaline massif.
Image
Crystals of <span class="search-highlight">quintinite</span>-1 M  on a magnetite surface (Kovdor alkaline massif,...
Published: 01 October 2010
F ig . 1. Crystals of quintinite-1 M on a magnetite surface (Kovdor alkaline massif, Kola peninsula, Russia).
Image
Crystal structure of disordered <span class="search-highlight">quintinite</span>-2 H  from the Kovdor alkaline ma...
Published: 01 October 2010
F ig . 3. Crystal structure of disordered quintinite-2 H from the Kovdor alkaline massif, sample Q1.
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Representative compositions of <span class="search-highlight">quintinite</span> from Mount Mather Creek.         ...
Published: 24 March 2022
Table 8. Representative compositions of quintinite from Mount Mather Creek. Wt.% 1 2 3 SiO 2 0.07 0.08 0.04 Al 2 O 3 19.96 20.38 20.38 FeO 9.31 8.90 9.33 MgO 26.07 26.75 26.07 H 2 O (calc) 31.59 32.12 31.81 CO 2 (calc) 8.58 8.72 8.63