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tetranatrolite

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Journal Article

Pressure-induced hydration in zeolite tetranatrolite Available to Purchase

Yongjae Lee, Joseph A. Hriljac, John B. Parise, Thomas Vogt
Published: 01 February 2006
American Mineralogist (2006) 91 (2-3): 247–251.
DOI: https://doi.org/10.2138/am.2006.1847
...Yongjae Lee; Joseph A. Hriljac; John B. Parise; Thomas Vogt Abstract The tetranatrolite-paranatrolite transformation has remained a key problem in understanding the paragenesis of zeolites in the natrolite family. It is accepted that when paranatrolite, approximate formula Na 16− x Ca x Al 16+ x Si...
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View PDF for article title, Pressure-induced hydration in zeolite <span class="search-highlight">tetranatrolite</span>
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Journal Article

Variable-temperature structural studies of tetranatrolite from Mt. Saint-Hilaire: Synchrotron X-ray powder diffraction and Rietveld analysis Available to Purchase

Yongjae Lee, Joseph A. Hriljac, Thomas Vogt
Published: 01 January 2005
American Mineralogist (2005) 90 (1): 247–251.
DOI: https://doi.org/10.2138/am.2005.1696
...Yongjae Lee; Joseph A. Hriljac; Thomas Vogt Abstract The temperature-dependent evolution of the crystal structure of natural tetranatrolite (Mt. Saint-Hilaire, approximate formula Na 5.85 Ca 1.90 Al 9.25 Si 10.75 O 40 ·11H 2 O) was investigated using monochromatic synchrotron X-ray powder...
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View PDF for article title, Variable-temperature structural studies of <span class="search-highlight">tetranatrolite</span> from Mt. Saint-Hilaire: Synchrotron X-ray powder diffraction and Rietveld analysis
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Journal Article

The crystal structure of tetranatrolite from Mont Saint-Hilaire, Québec, and its chemical and structural relationship to paranatrolite and gonnardite Available to Purchase

Howard T. Evans, Jr., Judith A. Konnert, Malcolm Ross
Published: 01 November 2000
American Mineralogist (2000) 85 (11-12): 1808–1815.
DOI: https://doi.org/10.2138/am-2000-11-1225
...Howard T. Evans, Jr.; Judith A. Konnert; Malcolm Ross Abstract The structure of tetranatrolite from Mont Saint-Hilaire, Québec (U.S. National Museum sample R1830) with a = 13.197(7) Å, c = 6.630(9) Å, and space group I 4̅2 d , was refined using single-crystal X-ray data. A representative formula...
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View PDF for article title, The crystal structure of <span class="search-highlight">tetranatrolite</span> from Mont Saint-Hilaire, Québec, and its chemical and structural relationship to paranatrolite and gonnardite
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Journal Article

Gonnardite; re-examination of holotype material and discreditation of tetranatrolite Available to Purchase

G. Artioli, E. Galli
Published: 01 September 1999
American Mineralogist (1999) 84 (9): 1445–1450.
DOI: https://doi.org/10.2138/am-1999-0924
... confirmed unambiguously by single crystal X-ray diffractometry. The present chemical and crystallographic study re-examines gonnardite type material from Puy-de-Dome, France (British Museum specimen no. BM1930-166), to define its relationship to tetranatrolite. Materials from the deposited holotype...
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Journal Article

Tetranatrolite from Mont St-Hilaire, Quebec Available to Purchase

T. T. Chen, G. Y. Chao
Published: 01 February 1980
The Canadian Mineralogist (1980) 18 (1): 77–84.
View PDF for article title, <span class="search-highlight">Tetranatrolite</span> from Mont St-Hilaire, Quebec
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Journal Article

The reversibility of the paranatrolitete-tranatrolite transformation Available to Purchase

Yurii V. Seryotkin, Vladimir V. Bakakin
Published: 01 July 2007
European Journal of Mineralogy (2007) 19 (4): 593–598.
DOI: https://doi.org/10.1127/0935-1221/2007/0019-1743
...Yurii V. Seryotkin; Vladimir V. Bakakin Abstract The problem of the reversibility of paranatrolite-tetranatrolite transformation is a key problem in understanding the paragenesis of the natrolite group zeolites. Two paranatrolite samples of different chemical composition were studied by X-ray...
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The evolution of the crystal structure of tetranatrolite (Na11.7Ca3.8Al18.5Si21.5O80·nH2O; n = 22 at 1 bar) with pressure viewed parallel to the channel axis. (a) Tetranatrolite before PIH at 1bar, n = 22 per 80 framework O atoms, (b) superhydrated tetranatrolite at 6.9(1) GPa, n = 32. Tetrahedra are shown in one color to illustrate the disordering of Si/Al over the framework tetrahedral sites. Open circles represent mixed Na/Ca sites, and O atoms from water molecules are shown as two tone and filled cicles to illustrate partial and full occupancies, respectively. The ellipticity of the channel opening is illustrated by dotted arrows. Dotted lines defi ne unit cells.

The evolution of the crystal structure of tetranatrolite (Na 11.7 Ca 3.8 Al... Available to Purchase

Published: 01 February 2006
F igure 3. The evolution of the crystal structure of tetranatrolite (Na 11.7 Ca 3.8 Al 18.5 Si 21.5 O 80 · n H 2 O; n = 22 at 1 bar) with pressure viewed parallel to the channel axis. ( a ) Tetranatrolite before PIH at 1bar, n = 22 per 80 framework O atoms, ( b ) superhydrated
Journal Article

Crystalline solution series and order-disorder within the natrolite mineral group Available to Purchase

Malcolm Ross, Marta J. K. Flohr, Daphne R. Ross
Published: 01 August 1992
American Mineralogist (1992) 77 (7-8): 685–703.
...Malcolm Ross; Marta J. K. Flohr; Daphne R. Ross Abstract The zeolite minerals of the natrolite group (natrolite, tetranatrolite, paranatrolite, mesolite, scolecite, thomsonite, gonnardite, edingtonite, and tetraedingtonite) have the general formula (Na,Ca,Ba) 8–16 (Al,Si) 40 O 80 · n H 2 O...
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Temperature dependence of the unit-cell edge lengths for tetranatrolite. The closed and open symbols represent phase I and phase II, respectively.

Temperature dependence of the unit-cell edge lengths for tetranatrolite. Th... Available to Purchase

Published: 01 January 2005
F igure 2. Temperature dependence of the unit-cell edge lengths for tetranatrolite. The closed and open symbols represent phase I and phase II, respectively.
Image
Temperature evolution of structural models of tetranatrolite. The empty circles represent water molecules throughout; (a-d) filled circles are used for the mixed Na/Ca site; (e) light and dark circles represent sodium and calcium cations, respectively. The hollow tetrahedra illustrate a disordered distribution of Si/Al atoms at the framework T-sites. The dotted lines define the unit cell.

Temperature evolution of structural models of tetranatrolite. The empty cir... Available to Purchase

Published: 01 January 2005
F igure 4. Temperature evolution of structural models of tetranatrolite. The empty circles represent water molecules throughout; ( a - d ) filled circles are used for the mixed Na/Ca site; ( e ) light and dark circles represent sodium and calcium cations, respectively. The hollow tetrahedra
Image
View of the crystal structure of tetranatrolite showing the location of the sodium atoms and the O4 and O5 water molecules within the Si-Al-O framework. A twofold symmetry axis, passing through O1 and Na, is shown.

View of the crystal structure of tetranatrolite showing the location of the... Available to Purchase

Published: 01 November 2000
F igure 2. View of the crystal structure of tetranatrolite showing the location of the sodium atoms and the O4 and O5 water molecules within the Si-Al-O framework. A twofold symmetry axis, passing through O1 and Na, is shown.
Journal Article

The crystal structure of paranatrolite Available to Purchase

Yurii V. SERYOTKIN, Vladimir V. BAKAKIN, Igor A. BELITSKY
Published: 01 May 2004
European Journal of Mineralogy (2004) 16 (3): 545–550.
DOI: https://doi.org/10.1127/0935-1221/2004/0016-0545
... on zeolites of the IMA ( Coombs et al., 1997 ), there is some doubt about the existence of paranatrolite as a separate mineral species. In our opinion, however, the assignment of paranatrolite to overhydrated natrolite, tetranatrolite or gonnardite is incorrect. As reported by Belitsky et al. (1992...
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View PDF for article title, The crystal structure of paranatrolite
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Journal Article

Order/disorder in natrolite group zeolites: A 29 Si and 27 Al MAS NMR study Available to Purchase

Philip S. Neuhoff, Scott Kroeker, Lin-Shu Du, Thráinn Fridriksson, Jonathan F. Stebbins
Published: 01 October 2002
American Mineralogist (2002) 87 (10): 1307–1320.
DOI: https://doi.org/10.2138/am-2002-1006
.... † Geological Survey of Denmark and Greenland sample #447433. ‡ Stanford University Mineral collection sample #31712. § Donated by L. Horváth. Mineral natrolite natrolite natrolite tetranatrolite mesolite scolecite gonnardite Locality San Benito Co., Ca, U.S.A. Marraat, West Greenland...
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View PDF for article title, Order/disorder in natrolite group zeolites: A 29 Si and 27 Al MAS NMR study
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Pressure dependency of the calculated density in natrolite and tetranatrolite. Data from Lee et al. (2002) are used for the natrolite behavior (open symbols).

Pressure dependency of the calculated density in natrolite and tetranatroli... Available to Purchase

Published: 01 February 2006
F igure 2. Pressure dependency of the calculated density in natrolite and tetranatrolite. Data from Lee et al. (2002) are used for the natrolite behavior (open symbols).
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Temperature dependence of the unit-cell volume (triangle) and water content (diamond) for tetranatrolite. The closed and open symbols represent phase I and phase II, respectively.

Temperature dependence of the unit-cell volume (triangle) and water content... Available to Purchase

Published: 01 January 2005
F igure 3. Temperature dependence of the unit-cell volume (triangle) and water content (diamond) for tetranatrolite. The closed and open symbols represent phase I and phase II, respectively.
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Temperature dependence of the T-O-T angles and the chain rotation angle (ψ) for tetranatrolite. The closed and open symbols represent phase I and phase II, respectively.

Temperature dependence of the T-O-T angles and the chain rotation angle (ψ)... Available to Purchase

Published: 01 January 2005
F igure 5. Temperature dependence of the T-O-T angles and the chain rotation angle (ψ) for tetranatrolite. The closed and open symbols represent phase I and phase II, respectively.
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Experimental (points) and calculated (line) diffraction profiles of the sample I at 38 °C. The tick marks indicate the positions of allowed Bragg peaks for the tetranatrolite structure, space group I4̅2d.

Experimental (points) and calculated (line) diffraction profiles of the sam... Available to Purchase

Published: 01 July 2007
Fig. 3. Experimental (points) and calculated (line) diffraction profiles of the sample I at 38 °C. The tick marks indicate the positions of allowed Bragg peaks for the tetranatrolite structure, space group I 4̅2 d .
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Compositions of samples listed in Table 1. Shown for reference are the ideal compositions of natrolite, mesolite, scolecite and end-members in the gonnardite and “tetranatrolite” solid solutions proposed by Ross et al. (1992). The dashed lines represent these solid solutions.

Compositions of samples listed in Table 1 . Shown for reference are the ide... Available to Purchase

Published: 01 October 2002
F igure 2. Compositions of samples listed in Table 1 . Shown for reference are the ideal compositions of natrolite, mesolite, scolecite and end-members in the gonnardite and “tetranatrolite” solid solutions proposed by Ross et al. (1992) . The dashed lines represent these solid solutions.
Journal Article

Errata Available to Purchase

Published: 01 April 2001
American Mineralogist (2001) 86 (4): 588.
... Canadian Museum of Nature © 2001 American Mineralogist 2001 The crystal structure of tetranatrolite from Mont Saint Hilaire, Quebec, and its chemical and structural relationship to paranatrolite and gonnardite by H.T. Evans Jr., J.A. Konnert, and M. Ross ( v. 85, 1808–1815–2000...
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Details of the changes in the synchrotron X-ray powder diffraction patterns observed for tetranatrolite as a function of temperature. Two tetragonal phases, partially dehydrated phase I and nearly fully dehydrated phase II, coexist at 300 °C, and the material decomposes above 400 °C.

Details of the changes in the synchrotron X-ray powder diffraction patterns... Available to Purchase

Published: 01 January 2005
F igure 1. Details of the changes in the synchrotron X-ray powder diffraction patterns observed for tetranatrolite as a function of temperature. Two tetragonal phases, partially dehydrated phase I and nearly fully dehydrated phase II, coexist at 300 °C, and the material decomposes above 400 °C.