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pitiglianoite

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Journal Article
Published: 01 November 2005
European Journal of Mineralogy (2005) 17 (6): 847-851.
...-FTIR spectroscopy on a sample of pitiglianoite from Monte Cavalluccio ( Bonaccorsi & Orlandi, 1996 ). A sharp and prominent band is observed in the medium-infrared range at 2351 cm -1 , which can be assigned to carbon dioxide molecules in the studied sample. Polarized-light FTIR spectra collected...
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Journal Article
Published: 01 December 1991
American Mineralogist (1991) 76 (11-12): 2003-2008.
...Stefano Merlino; Marcello Mellini; Elena Bonaccorsi; Marco Pasero; Leonardo Leoni; Paolo Orlandi Abstract Pitiglianoite, ideally Na 6 K 2 Si 6 Al 6 O 24 (SO 4 )·2H 2 O, is a new aluminosilicate that occurs in ejected blocks near Pitigliano, southern Tuscany, Italy. It is hexagonal, space group P 6...
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Single-crystal unpolarised-light FTIR spectrum of <b>pitiglianoite</b> from Monte ...
Published: 01 November 2005
Fig. 1. Single-crystal unpolarised-light FTIR spectrum of pitiglianoite from Monte Cavalluccio. Spectrum collected on a 112 μm thick oriented [001] section.
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Polarized-light FTIR spectra of <b>pitiglianoite</b> from Monte Cavalluccio collec...
Published: 01 November 2005
Fig. 2. Polarized-light FTIR spectra of pitiglianoite from Monte Cavalluccio collected on a 112 μm thick oriented [001] section.
Journal Article
Published: 01 May 2018
European Journal of Mineralogy (2018) 30 (3): 507-514.
... crystal chemical and structural features and their thermal behaviour. Only K-rich pitiglianoite shows a significant negative expansion that has been attributed to the occurrence, as in the case of the zeolite erionite, of a sort of “internal cation exchange” process involving the substitution by K of H 2...
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Journal Article
Published: 01 October 2011
The Canadian Mineralogist (2011) 49 (5): 1129-1150.
..., balliranoite 1 and 0, hydroxycancrinite 0 and 1, quadridavyne 0 and 10, microsommite 0 and 8, and pitiglianoite 0 and 3. We provide original structural data for nine samples of distinct varieties of cancrinite and one sample of cancrisilite, as well as published structural data on the above-listed minerals...
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Journal Article
Published: 01 October 2011
The Canadian Mineralogist (2011) 49 (5): 1151-1164.
...-framework components. We provide IR spectra for typical samples of cancrinite, cancrisilite, kyanoxalite, hydroxycancrinite, depmeierite, vishnevite, pitiglianoite, balliranoite, davyne and quadridavyne, as well as the most unusual varieties of cancrinite-subgroup minerals (Ca-deficient cancrinite, H 2 O...
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Journal Article
Published: 01 June 2000
The Canadian Mineralogist (2000) 38 (3): 657-668.
... of the SO 4 tetrahedra within the cage. The two “cancrinite” cages share a common base and contain a segment of the …Na–H 2 O…Na–H 2 O…. chain, which is a characteristic feature of the cancrinite, vishnevite, and pitiglianoite structures. The “sodalite” cages host one sulfate group that is always disordered...
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Relative variations of the unit cell volume with increasing temperature for...
Published: 01 January 2005
Figure 10. Relative variations of the unit cell volume with increasing temperature for cancrinite (crosses) and pitiglianoite (filled squares).
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Relative cell-parameters and volume expansion of selected cancrinite−sodali...
Published: 01 May 2018
Fig. 7 Relative cell-parameters and volume expansion of selected cancrinite−sodalite group minerals. (a) a / a 0 , (b) c / c 0 and (c) V / V 0 . Reference data: pitiglianoite, Bonaccorsi et al. (2007) ; all others see Table 4 .
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IR spectra of SO 4 -bearing cancrinite-group minerals: vishnevite, K-poor v...
Published: 01 October 2011
Fig. 4 IR spectra of SO 4 -bearing cancrinite-group minerals: vishnevite, K-poor variety from Mount Alluaiv, Lovozero massif, Kola Peninsula, Russia (a), vishnevite, K-rich variety from Murun massif, Siberia, Russia, (b), and pitiglianoite from Monte Cavalluccio, Sacrofano volcanic complex
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IR spectra of SO 4 -bearing cancrinite-group minerals: vishnevite, K-poor v...
Published: 01 October 2011
Fig. 4 IR spectra of SO 4 -bearing cancrinite-group minerals: vishnevite, K-poor variety from Mount Alluaiv, Lovozero massif, Kola Peninsula, Russia (a), vishnevite, K-rich variety from Murun massif, Siberia, Russia, (b), and pitiglianoite from Monte Cavalluccio, Sacrofano volcanic complex
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IR spectra of SO 4 -bearing cancrinite-group minerals: vishnevite, K-poor v...
Published: 01 October 2011
Fig. 4 IR spectra of SO 4 -bearing cancrinite-group minerals: vishnevite, K-poor variety from Mount Alluaiv, Lovozero massif, Kola Peninsula, Russia (a), vishnevite, K-rich variety from Murun massif, Siberia, Russia, (b), and pitiglianoite from Monte Cavalluccio, Sacrofano volcanic complex
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Wavenumbers of absorption maxima of the bands ν I  and ν III  in IR spectra...
Published: 01 October 2011
of the cancrinite– hydroxycancrinite series (E), depmeierite (F), vishnevite (G), pitiglianoite (H), balliranoite and CO 3 -rich members of the davyne–balliranoite series (I), davyne (J), and quadridavyne (K).
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Correlations between unit-cell parameters of Cl-bearing (upper correlation)...
Published: 01 October 2011
: a * = 0.5 a [sin(π/3)] −1 (for microsommite and pitiglianoite) and a ** = 0.5 a (for quadridavyne).
Journal Article
Published: 01 May 2007
American Mineralogist (2007) 92 (5-6): 713-721.
... 2− for CO 3 2− groups along the cancrinite-vishnevite series is correlated with the entry of significant amounts of K in the channels; when the (Na,Ca): K is nearly = 1, there is the possibility of long-range ordering of sulfate groups and extra-framework cations, such as in pitiglianoite, which...
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Journal Article
Published: 01 February 2016
American Mineralogist (2016) 101 (2): 253-265.
... a , b hydroxycancrinite [Na 6 (OH) 2 ][Na 2 (H 2 O) 2 ][Si 6 Al 6 O 24 ] 1 12.740, 5.182 P 3 a cancrisilite Na 7 Al 5 Si 7 O 24 (CO 3 )·3H 2 O 1 12.575, 5.105 P 6 3 mc a pitiglianoite [(Na 4 K 2 )(SO 4 )][Na 2 (H 2 O) 2 ][Si 6 Al 6 O 24 ] 3 22.121, 5.221 P 6 3...
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Journal Article
Published: 01 May 2004
European Journal of Mineralogy (2004) 16 (3): 511-520.
... belonging to the cancrinite group lead to a better knowledge of their crystal chemistry. In particular, the structural refinements of davyne ( Hassan & Grundy, 1990 ; Bonaccorsi et al. , 1990 ), pitiglianoite ( Merlino et al. , 1991 ), and microsommite ( Bonaccorsi et al. , 2001 ), as well...
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Journal Article
Published: 01 November 2005
European Journal of Mineralogy (2005) 17 (6): 839-846.
... is controlled by geometrical constraints ( Ballirano et al. , 1996b ). In addition, ordering of extra-framework Na and K cations, coupled with ordering of SO 4 anion groups, may also produce to a threefold supercell, with a pit = √3 a can of cancrinite, as indeed is the case for pitiglianoite ( Merlino...
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Journal Article
Published: 01 January 2004
European Journal of Mineralogy (2004) 16 (1): 135-141.
..., difference Fourier maps clearly indicated that the M1 site was split as commonly found in other cancrinite-like minerals (davyne: Hassan & Grundy, 1990 ; Bonaccorsi et al. , 1990 , 1992 and 1995 ; microsommite: Bonaccorsi et al. , 2001 ; pitiglianoite: Merlino et al. , 1991 ; quadridavyne...
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