Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-03T04:41:56.378Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Published online by Cambridge University Press:  05 July 2018

F. Cámara ,
E. Sokolova  and
F. C. Hawthorne
F. Cámara*
Affiliation:
Dipartimento di Scienze Mineralogiche e Petrologiche, Università degli Studi di Torino, via Valperga Caluso 35, 10125 Torino, Italy CNR – Istituto di Geoscienze e Georisorse, unità di Pavia, via Ferrata 1, I-27100 Pavia, Italy
E. Sokolova
Affiliation:
CNR – Istituto di Geoscienze e Georisorse, unità di Pavia, via Ferrata 1, I-27100 Pavia, Italy
F. C. Hawthorne
Affiliation:
CNR – Istituto di Geoscienze e Georisorse, unità di Pavia, via Ferrata 1, I-27100 Pavia, Italy
*
*E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Rinkite, ideally Na2Ca4REETi(Si2O7)2OF3, 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-αa radiation). The crystals, a = 7.4132-7.4414, b = 5.6595-5.6816, c = 18.8181-18.9431 Å, β = 101.353-101.424(2)°, V= 776.1-786.7 Å3, space group P21lc, Z = 2, Dcalc = 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 = 1 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.

Keywords

rinkitecrystal structureEMP analysistransmission electron microscopychemical formulaTi disilicate mineralsGroup I
Type
Research Article
Information
Mineralogical Magazine , Volume 75 , Issue 6 , December 2011 , pp. 2755 - 2774
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

†

Permanent address: Department of Geological Sciences, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada

‡

Permanent address: Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Moscow 109017, Russia

References

Bellezza, M., Franzini, M., Larsen, A.O., Merlino, S. and Perchiazzi, N. (2004) Grenmarite, a new member of the götzenite-seidozerite-rosenbuschite group from the Langesundsfjord district, Norway: definition and crystal structure. European Journal of Mineralogy, 16, 971-978.CrossRefGoogle Scholar
Bellezza, M., Merlino, S. and Perchiazzi, N. (2009) Mosandrite, structural and crystal-chemical relationships with rinkite. The Canadian Mineralogist, 47, 897-908.CrossRefGoogle Scholar
Bøggild, O. B. (1953) The mineralogy of Greenland. Meddelelser om Grønland, 149, 220-223.Google Scholar
Brøgger, W.C. (1890) Die miniralian der syenitpegmattigänge der südnorwegischen augit und nephelinsienite. Zeitschrift für Kristallographie, 16, 586-597.Google Scholar
Brown, I.D. (1981) The bond-valence method: an empirical approach to chemical structure and bonding. Pp. 1-30 in: Structure and Bonding in Crystals II (O’Keeffe, M. and Navrotsky, A., editors). Academic Press, New York, 357 pp.Google Scholar
Cámara, F. and Sokolova, E. (2007) From structure topology to chemical composition. VI. Titanium silicates: the crystal structure andcrystal chemistry of bornemanite, a group-III Ti-disilicate mineral. Mineralogical Magazine, 71, 593-610.CrossRefGoogle Scholar
Cámara, F. and Sokolova, E. (2009) From structure topology to chemical composition. X. Titanium silicates: the crystal structure andcrystal chemistry of nechelyustovite, a group III Ti-disilicate mineral. Mineralogical Magazine, 73, 887-897.Google Scholar
Cámara, F., Sokolova, E., Hawthorne, F.C. and Abdu, Y. (2008) From structure topology to chemical composition. IX. Titanium silicates: revision of the crystal chemistry of lomonosovite andmurmanite, Group- IV minerals. Mineralogical Magazine, 72, 1207-1228.CrossRefGoogle Scholar
Cámara, F., Sokolova, E. and Nieto, F. (2009) Cámaraite, Ba3NaTi4(Fe2+,Mn)8(Si2O7)4O4 (OH,F)7. II. The crystal structure andcryst al chemistry of a new group-II Ti-disilicate mineral. Mineralogical Magazine, 73, 855-870.CrossRefGoogle Scholar
Cannillo, E., Mazzi, F. and Rossi, G. (1972) Crystal structure of götzenite. Soviet Physics Crystallography, 16, 1026-1030.Google Scholar
Christiansen, C.C. and Rønsbo, J.G. (2000) On the structural relationship between götzenite andrinkite. Neues Jahrbuch für Mineralogie Monatshefte, 506-.Google Scholar
Christiansen, C.C., Makovicky, E. and Johnsen, O. (1999) Homology andtypism in heterophyllosilicates. Neues Jahrbuch für Mineralogie Abhandlungen, 175, 153-189.CrossRefGoogle Scholar
Christiansen, C.C., Johnsen, O. and Makovicky, E. (2003a) Crystal chemistry of the rosenbuschite group. The Canadian Mineralogist, 41, 1203-1224.CrossRefGoogle Scholar
Christiansen, C.C., Gault, R.A., Grice, J.D. and Johnsen, O. (2003b) Kochite, a new member of the rosenbuschite group from the Werner Bjerge alkaline complex, East Greenland. European Journal of Mineralogy, 15, 551-554.CrossRefGoogle Scholar
Galli, E. and Alberti, A. (1971) The crystal structure of rinkite. Acta Crystallographica, B27, 1284-.Google Scholar
Gottardi, G. (1966) X-ray crystallography of rinkite. American Mineralogist, 51, 1529-1535.Google Scholar
Kheirov, M.B., Mamedov, Kh.S. and Belov, N.V. (1963) Crystal structure of rinkite, Na(Ca,Ce)2(Ti,Ce)O (Si2O7)F. Doklady Akademii Nauk SSSR, 150, 162-164.Google Scholar
Lorenzen, J. (1884) Untersuchung einiger Mineralien aus Kangerdluarsuk in Grönland. Zeitschrift für Kristallographie, 9, 243-254.Google Scholar
Petersen, O.V., Rønsbo, J.G. and Leonardsen, E.S. (1989) Nacareniobsite-(Ce), a new mineral species from the Ilímaussaq alkaline complex, South Greenland, and its relation to mosandrite and the rinkite series. Neues Jahrbuch für Mineralogie Monatshefte, 96-.Google Scholar
Pouchou, J.L. and Pichoir, F. (1985) PAP (φρ) procedure for improved quantitative microanalysis. Pp. 104-106 in: Microbeam Analysis (Armstrong, J.T., editor). San Francisco Press, San Francisco, California, USA.Google Scholar
Pushcharovskii, D.Yu., Pasero, M., Merlino, S., Vladykin, N.D., Zubkova, N.V. and Gobechiya, E.R. (2002) Crystal structure of zirconium-rich seidozerite. Crystallography Reports, 47, 196-200.CrossRefGoogle Scholar
Rastsvetaeva, R.K, Borutskii, B.E. and Shlyukova, Z.V. (1991) Crystal structure of Hibbing (Khibinian) rinkite. Soviet Physics Crystallography, 36, 349-351.Google Scholar
Rastsvetaeva, R.K., Pushcharovsky, D.Yu. and Atencio, D. (1995) Crystal structure of giannetite (hainite). Crystallography Reports, 40, 574-578.Google Scholar
Shannon, R.D. (1976) Revisedeffective ionic radii and systematic studies of interatomic distances in halides andchalcogenid es. Acta Crystallographica, A32, 767-.Google Scholar
Sheldrick, G.M. (2008) A short history of SHELX. Acta Crystallographica, A64, 122-.Google Scholar
Shibaeva, R.P., Simonov, V.I. and Belov, N.V. (1964) Crystal structure of the Ca, Na, Zr, Ti silicate rosenbu schite, Ca3.5Na2.5Zr (Ti,Mn,Nb) [Si2O7]2F2O(F,O). Soviet Physics Crystallography, 8, 406-413.Google Scholar
Simonov, V.I. and Belov, N.V. (1960) The determination of the crystal structure of seidozerite. Soviet Physics Crystallography, 4, 146-157.Google Scholar
Simonov, V.I. and Belov, N.V. (1968) Characteristics of the crystal structure of rinkite. Soviet Physics Crystallography, 12, 740-744.Google Scholar
Skszat, S.M. and Simonov, V.I. (1966) The structure of calcium seidozerite. Soviet Physics Crystallography, 10, 505-508.Google Scholar
Slepnev, Yu.S. (1957) On the minerals of the rinkite group. Izvestiya Akademii Nauk SSSR, Seriya Geologicheskaya, N3, 75-. [in Russian].Google Scholar
Sokolova, E. (2006) From structure topology to chemical composition. I. Structural hierarchy and stereochemistry in titanium disilicate minerals. The Canadian Mineralogist, 44, 1273-1330.CrossRefGoogle Scholar
Sokolova, E. and Cámara, F. (2007) From structure topology to chemical composition. II. Titanium silicates: revision of the crystal structure and chemical formula of delindeite. The Canadian Mineralogist, 45, 1247-1261.CrossRefGoogle Scholar
Sokolova, E. and Cámara, F. (2008a) From structure topology to chemical composition. VIII. Titanium silicates: the crystal structure andcrystal chemistry of mosandrite from type locality of Låven (Skådön), Langesundsfjorden, Larvik, Vestfold, Norway. Mineralogical Magazine, 72, 887-897.CrossRefGoogle Scholar
Sokolova, E. and Cámara, F. (2008b) From structure topology to chemical composition. III. Titanium silicates: crystal chemistry of barytolamprophyllite. The Canadian Mineralogist, 46, 403-412.CrossRefGoogle Scholar
Sokolova, E. and Hawthorne, F.C. (2008a) From structure topology to chemical composition. IV. Titanium silicates: the orthorhombic polytype of nabalamprophyllite from Lovozero massif, Kola Peninsula, Russia. The Canadian Mineralogist, 46, 1323-1331.CrossRefGoogle Scholar
Sokolova, E. and Hawthorne, F.C. (2008b) From structure topology to chemical composition. V. Titanium silicates: crystal chemistry of nacareniobsite-(Ce). The Canadian Mineralogist, 46, 1333-1342.CrossRefGoogle Scholar
Sokolova, E., Abdu, Y., Hawthorne, F.C., Stepanov, A.V., Bekenova, G.K. and Kotel’nikov, P.E. (2009a) Cámaraite, Ba3NaTi4(Fe2+,Mn)8(Si2O7)4O4(OH,F)7. I. A new titanium-silicate mineral from the Verkhnee Espe deposit, Akjailyautas Mountains, Kazakhstan. Mineralogical Magazine, 73, 847-854.CrossRefGoogle Scholar
Sokolova, E., Cámara, F., Hawthorne, F.C. and Abdu, Y. (2009b) From structure topology to chemical composition. VII. Titanium silicates: the crystal structure andcrystal chemistry of jinshajiangite. European Journal of Mineralogy, 21, 871-883.CrossRefGoogle Scholar
Tê-yü, L., Simonov, V.I. and Belov, N.I. (1965) Crystal structure of rinkite Na(Na,Ca)2(Ca,Ce)4(Ti,Nb) [Si2O7]2(O,F)2F2 . Soviet Physics Doklady, 10, 496-498.Google Scholar
Wilson, A.J.C. (editor) (1992) International Tables for Crystallography. Volume C: Mathematical, physical and chemical tables. Kluwer Academic Publishers, Dordrecht, The Netherlands.Google Scholar
Supplementary material: File

Cámara et al. supplementary material

CIF 1

Download Cámara et al. supplementary material(File)
File 37.2 KB
Supplementary material: File

Cámara et al. supplementary material

CIF 2

Download Cámara et al. supplementary material(File)
File 37.6 KB
Supplementary material: File

Cámara et al. supplementary material

CIF 3

Download Cámara et al. supplementary material(File)
File 37.4 KB
Supplementary material: File

Cámara et al. supplementary material

CIF 4

Download Cámara et al. supplementary material(File)
File 40.3 KB
Supplementary material: File

Cámara et al. supplementary material

CIF 5

Download Cámara et al. supplementary material(File)
File 37.4 KB
Supplementary material: File

Cámara et al. supplementary material

Anisotropic diplacement factors

Download Cámara et al. supplementary material(File)
File 214.5 KB