From structure topology to chemical composition. XII. Titanium silicates: the crystal chemistry of rinkite Na2Ca4REETi(Si2O7)2OF3 (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• From structure topology to chemical composition. XII. Titanium silicates: the crystal chemistry of rinkite Na2Ca4REETi(Si2O7)2OF3 (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1180/minmag.2011.075.6.2755 (literal)

Alternative label

• Camara, F. [ 1,2 ] ; Sokolova, E. [ 2 ] ; Hawthokne, F. C. [ 2 ] (2011)
  From structure topology to chemical composition. XII. Titanium silicates: the crystal chemistry of rinkite Na2Ca4REETi(Si2O7)2OF3
  in Mineralogical magazine (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Camara, F. [ 1,2 ] ; Sokolova, E. [ 2 ] ; Hawthokne, F. C. [ 2 ] (literal)

Pagina inizio

• 2755 (literal)

Pagina fine

• 2774 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

• ID_PUMA : cnr.igg/2011-A0-086 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 75 (literal)

Rivista

• Mineralogical magazine (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 6 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• [ 1 ] Univ Turin, Dipartimento Sci Mineral & Petrol, I-10125 Turin, Italy [ 2 ] CNR, Ist Geosci & Georisorse, Unita Pavia, I-27100 Pavia, Italy (literal)

Titolo

• From structure topology to chemical composition. XII. Titanium silicates: the crystal chemistry of rinkite Na2Ca4REETi(Si2O7)2OF3 (literal)

Abstract

• Rinkite, ideally Na2Ca4REETi(Si2O7)(2)OF3, is a common mineral in alkaline and peralkaline rocks. The crystal structures of five rinkite crystals from three alkaline massifs: Ilimaussaq, Greenland; Khibiny, Kola Peninsula, Russia and Mont Saint-Hilaire, Canada, have been refined as two components related by the TWIN matrix (-1 0 0, 0 - 1 0, 1 0 1) (Mo-K alpha radiation). The crystals, a = 7.4132-7.4414, b = 5.6595-5.6816, c = 18.8181-18.9431 angstrom, beta = 101.353-101.424(2)degrees, V = 776.1-786.7 angstrom(3), space group P2(1)/c, Z = 2, D-calc = 3.376-3.502 g cm(-3), were analysed using an electron microprobe subsequent to collection of the X-ray intensity data. Transmission electron microscopy confirmed the presence of pseudomerohedral twinning in rinkite crystals. The crystal structure of rinkite is a framework of TS (titanium silicate) blocks. The TS block consists of HOH sheets (H-heteropolyhedral, O-octahedral). The TS block in rinkite exhibits linkage and stereochemistry typical for Group I (Ti = I a.p.f.u.) of Ti disilicate minerals: two H sheets connect to the O sheet such that two (Si2O7) groups link to the trans edges of a Na polyhedron of the O sheet. The crystal chemistry of rinkite and nacareniobsite-(Ce) is discussed. (literal)

Prodotto di

• Istituto di geoscienze e georisorse (IGG) (Istituto)
• Metodologie integrate per la conoscenza di processi e materiali geologici e del loro impatto sull'uomo e l'ambiente (TA.P04.014.002) (Modulo)

Autore CNR

• FERNANDO CAMARA ARTIGAS (Persona)

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Autore CNR di

• FERNANDO CAMARA ARTIGAS (Persona)

Prodotto

• Istituto di geoscienze e georisorse (IGG) (Istituto)
• Metodologie integrate per la conoscenza di processi e materiali geologici e del loro impatto sull'uomo e l'ambiente (TA.P04.014.002) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Mineralogical magazine (Rivista)

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• Parole chiave di "From structure topology to chemical composition. XII. Titanium silicates: the crystal chemistry of rinkite Na2Ca4REETi(Si2O7)2OF3" (Insieme di parole chiave)