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gramaccioliite

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Journal Article
Published: 01 June 2010
European Journal of Mineralogy (2010) 22 (3): 443–452.
...Thomas Theye; Frédéric Hatert; Ewald Ockenga; Christian Bertoldi; Christian Lathe Abstract We describe a second occurrence of the recently defined mineral species gramaccioliite-(Y), a member of the crichtonite group, on Samos Island, Greece. The mineral occurs in form of centimetre-sized...
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Journal Article
Published: 01 January 2004
European Journal of Mineralogy (2004) 16 (1): 171–175.
...Paolo ORLANDI; Marco PASERO; Nicola ROTIROTI; Filippo OLMI; Francesco DEMARTIN; Yves MOËLO Abstract Gramaccioliite-(Y) is a new mineral within the crichtonite group. It was found in the gneiss of the Hercynian Massif of Argentera, at Sambuco (Stura Valley, Piedmont, Italy). It occurs as black...
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<span class="search-highlight">Gramaccioliite</span>-(Y) bearing veins in metabauxite, Samos Island, Greece. (a) ...
Published: 01 June 2010
Fig. 1. Gramaccioliite-(Y) bearing veins in metabauxite, Samos Island, Greece. (a) Brecciated gramaccioliite-(Y) with inclusions of euhedral diaspore and cracks filled by calcite. Note that gramaccioliite-(Y) fragments perfectly fit together. The matrix is composed of calcite. Reflected light
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Selected bond distances (Å) in <span class="search-highlight">gramaccioliite</span>-(Y).
Published: 01 January 2004
Table 7. Selected bond distances (Å) in gramaccioliite-(Y).
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Coordination polyhedron of the M0 site in <span class="search-highlight">gramaccioliite</span>-(Y) from Samos.
Published: 01 June 2010
Fig. 4. Coordination polyhedron of the M0 site in gramaccioliite-(Y) from Samos.
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Electron microprobe analysis (average of 10 points) of <span class="search-highlight">gramaccioliite</span>-(Y).
Published: 01 January 2004
Table 3. Electron microprobe analysis (average of 10 points) of gramaccioliite-(Y).
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Final fractional coordinates and equivalent isotropic ( U  eq , for cations...
Published: 01 January 2004
Table 5. Final fractional coordinates and equivalent isotropic ( U eq , for cations) or isotropic ( U iso , for oxygens) displacement parameters for gramaccioliite-(Y).
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X-ray powder pattern (Gandolfi camera, diameter 114.6 mm, Mn-filtered Fe K ...
Published: 01 January 2004
Table 4. X-ray powder pattern (Gandolfi camera, diameter 114.6 mm, Mn-filtered Fe K α radiation) of gramaccioliite-(Y).
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Chondrite-normalized REE-patterns of monazite-(Ce), bastnäsite-(La), paris...
Published: 01 June 2010
Fig. 3. Chondrite-normalized REE-patterns of monazite-(Ce), bastnäsite-(La), parisite-(Ce), and gramaccioliite-(Y). Chondrite REE abundances by Schmitt et al. (1964) .
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Back scattered electron images and compositional profiles of <span class="search-highlight">gramaccioliite</span>...
Published: 01 June 2010
Fig. 2. Back scattered electron images and compositional profiles of gramaccioliite-(Y) grains. (a) Grain 1 shows a concentric compositional zoning with a Pb-rich core and a REE-rich/Pb-poor rim of davidite-(La) composition. (b) In grain 2, an irregular zoning is present. (c) Grain 3 was used
Journal Article
Published: 01 October 2012
European Journal of Mineralogy (2012) 24 (6): 1061–1067.
... of his contributions to Italian mineralogy. Professor Pasero is a co-author of the book Italian Type Minerals ( Ciriotti et al ., 2009 ) and has described 12 new minerals from Italy, including two new members of the crichtonite group, dessauite-(Y) and gramaccioliite-(Y). He has also acted...
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Journal Article
Published: 01 June 2014
European Journal of Mineralogy (2014) 26 (3): 427–437.
...) Dessauite-(Y) Sr,Pb Y,U Fe,Zn Ti,Fe Orlandi et al . (1997) Gramaccioliite-(Y) Pb,Sr Y,Mn Fe,Zn Ti,Fe Orlandi et al . (2004b) Landauite Na,Pb Mn,Y Zn Ti,Fe,Nb Grey & Gatehouse (1978) Lindsleyite Ba,K Zr,Fe Mg,Fe Ti,Cr,Fe Zhang et al . (1988) Loveringite Ca,LREE...
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Journal Article
Published: 01 May 2017
European Journal of Mineralogy (2017) 29 (2): 331–338.
..., Pb)(Y,U)(Ti,Fe 3+ ) 20 O 38 , a new mineral of the crichtonite group from Buca della Vena mine, Tuscany, Italy . Am. Mineral. , 82 , 807 – 811 . Orlandi P. Pasero M. Rotiroti N. Olmi F. Demartin F. Moëlo Y. ( 2004 ): Gramaccioliite-(Y...
Journal Article
Published: 01 November 2005
European Journal of Mineralogy (2005) 17 (6): 933–942.
...) ( Orlandi et al. , 1997 ), landauite ( Grey & Gatehouse, 1978 ), gramaccioliite-(Y) ( Orlandi et al. , 2004 ) and the new mineral cleusonite ( Table 1 ). Crichtonites are characterised by a common structural formula: XII_ A VI B VI C 18 IV T 2 (ϕ) 38 ( Armbruster & Kunz, 1990 ; Orlandi et al...
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Journal Article
Published: 01 July 2006
European Journal of Mineralogy (2006) 18 (4): 493–502.
...+ , Fe 3+ ) 18 (O, OH) 38 , from Nendaz Valley, Switzerland ( Wülser et al. , 2003 ), and gramaccioliite-(Y), (Pb,Sr)(Y,Mn)Fe 2 (Ti,Fe) 18 O 38 , from Stura Valley, Italy ( Orlandi et al. , 2004 ). Interestingly, a new structural sub-unit, consistent with the “ M 20 O 39 ” formula, has been reported...
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Journal Article
Published: 01 April 2015
Mineralogical Magazine (2015) 79 (2): 269–283.
...] Gramaccioliite-(Y) Pb,Sr Y,Mn 2+ (Fe 2+ ,Zn) 2 (Ti,Fe 3+ ) 18 O 38 [9] Cleusonite Pb,Sr U 4+ ,U 6+ (Fe 2+ ,Zn) 2 (Ti,Fe 2+ ,Fe 3+ ) 18 (O,OH) 38 [10] Paseroite Pb,Sr Mn 2+ (Mn 2+ ,Fe 2+ ) 2 (V,Ti,□,Fe 3+ ) 18 O 38 [11] “U-senaite” (Pb,O) 0.25 U 0.47 Met 1.34...
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Journal Article
Published: 28 November 2022
Mineralogical Magazine (2023) 87 (2): 204–217.
... in the Western Alps (Maritime and Cottian Alps, in the province of Cuneo, Piedmont), leading to the discovery of gramaccioliite-(Y) (Orlandi et al. , 2004 ) and grandaite (Cámara et al. , 2014 ), and to the creation of the mineralogical collection of the province of Cuneo, kept in the ‘Federico Eusebio...
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Journal Article
Published: 25 July 2024
American Mineralogist (2024)
... that a number of varieties exist 349 due to varying amounts of Ce, La, Ca, Sr, Pb, Mn, and Y contents, but most frequent are 350 gramaccioliite-(Y), ((Pb,Sr)(Y,Mn)Fe2(Ti,Fe)18O38), and dessauite-(Y), 351 ((Sr,Pb)(Y,U)(Fe,Ti)2(Ti,Fe)18O38). 352 Arsenic concentrations and distributions differ greatly between...
Journal Article
Published: 10 February 2023
Mineralogical Magazine (2023) 87 (3): 433–442.
.... , Rotiroti N. , Filippo O. , Demartin F. and Moëlo Y. ( 2004 ) Gramaccioliite-(Y), a new...
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Journal Article
Published: 01 November 2004
American Mineralogist (2004) 89 (11-12): 1826–1834.
... in the Simplon region in which the mica occurs. Type material is in the Naturhistorisches Museum, Basel, and in the Mineralogical Institute, University of Basel, Switzerland. J.L.J. . P. Orlandi, M. Pasero, N. Rotiroti, F. Olmi, F. Demartin, Y. Moëlo (2004) Gramaccioliite-(Y), a new mineral...