...Paolo Ballirano The thermal behaviour of sacrofanite, the ABCABACACABACBACBACABABACABC 28-layer member of the cancrinite−sodalite supergroup has been investigated in situ using laboratory focussing-beam X-ray powder diffraction data. Thermal expansion has been analysed from 303 to 873 K. A moderate...

... of layered structures containing an array of six-membered rings of T O 4 ( T = Si, Al, or Be), and belong to the cancrinite-sodalite supergroup ( Bonaccorsi & Nazzareni 2015 ). The presence of an ABC sequence generates the sodalite-group minerals, whereas an ABAB sequence gives rise to the cancrinite...

...F ig . 17. Frameworks of the cancrinite–sodalite-supergroup minerals as built up from polyhedral cages: CAN, SOD, LOS, AFG, LIO, TOL and FRA frameworks. ...

... to that reported for liottite, the ABABAC six-layer member of the sodalite-cancrinite supergroup ( Ballirano 2012 ). Insertion of haüyne in the refinements carried out on data collected at T above 1173 K provided a moderate improvement of the various Rietveld agreement indices. A weight fraction of 1.4...

... , 1019 – 1027 . Bonaccorsi E. Ballirano P. Cámara F. ( 2012 ) The crystal structure of sacrofanite, the 74 Å phase of the cancrinite-sodalite supergroup . Microporous and Mesoporous Materials , 147 , 318 – 326 . Burla M.C. Caliandro R. Camalli M. Carrozzini B...

... . Bonaccorsi E. Ballirano P. Cámara F . (2012) The crystal structure of sacrofanite, the 74 Å phase of the cancrinite–sodalite supergroup , Microporous and Mesoporous Materials , 147 , 318 – 326 . Bresciani-Pahor N. Calligaris M. Nardin G. Randaccio L . (1982...

... & Geochemistry, 57 . Mineralogical Society of America and the Geochemical Society , Chantilly, Virginia, USA . Bonaccorsi , E. , Ballirano , P. and Cámara , F. ( 2012 ) The crystal structure of sacrofanite, the 74 Å phase of the cancrinite-sodalite supergroup . Microporous and Mesoporous...

... observées, prélevées avec un diffractomètre à quatre cercles), est une nouvelle espèce minérale provenant du mont Koashva, complexe alcalin de Khibina, péninsule de Kola, en Russie. Elle a une origine pegmatitique. Lui sont associés feldspath potassique, sodalite, cancrinite, natrolite, pectolite...

... clinopyroxene ( Fig. 4 E, F). Scarce apatite, titanite, interstitial sodalite, and magnetite are recognized as accessory minerals. Secondary minerals are represented by abundant zeolite-group minerals, calcite, chlorite-group minerals, and possibly cancrinite. Locally, in the thicker parts of the veins...

... assemblage of hydrothermal or carbohydrothermal REE–Ba–Sr–Na phases including albite, analcime, cancrinite, gonnardite and nordstrandite after sodalite, together with complex intergrowths of ancylite-(Ce), barytocalcite, edingtonite, and a potentially-new Mg-bearing edingtonite-like mineral. Remobilisation...

... to crystallize in the sodalite syenite xenoliths. P. Khomyakov, F. Cámara, and E. Solokova (2010) Carbobystrite, Na 8 [Al 6 Si 6 O 24 ](CO 3 )·4H 2 O, a new cancrinite-group mineral species from the Khibina alkaline massif, Kola Peninsula, Russia: description and crystal structure. Can. Mineral., 48, 291...

..., including pectolite, eudialyte-group minerals, and sodalite, is likely essential to the formation of the kodamaite. kodamaite new mineral species alkali-alkaline earth fluorosilicate hydrate X-ray data Raman spectrum crystal structure chemical data layered silicate gyrolite supergroup Mont Saint...

..., gadolinite Be-Si disorder, 843, gadolinite REE crystal chemistry, 837, gadolinite supergroup, 550, 829, gahnite mineral chemistry, 511, hedyphane-group minerals, 347, heteropolyhedral Cu-S-O chain, 631, inverse trirutile structure, 85, Jahn-Teller distortion (Cu 2+ ), 160, lone-pair electrons: Pb 2+ , 403...

... ) Producing highly complicated materials. Nature does it better . Reports on Progress in Physics , 83 , 106501 . Bonaccorsi E. and Nazzareni S. ( 2015 ) Crystal chemical models for the cancrinite-sodalite supergroup: the structure of a new 18-layer phase . Zeitschrift für...