Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-25T09:32:41.612Z Has data issue: false hasContentIssue false
  • English
  • Français

Note on the occurrence of anatase in some fireclay deposits

Published online by Cambridge University Press:  14 March 2018

G. W. Brindley  and
Keith Robinson
G. W. Brindley
Affiliation:
Physics Laboratories, University of Leeds
Keith Robinson
Affiliation:
Physics Laboratories, University of Leeds
Get access Rights & Permissions [Opens in a new window]

Extract

In X-ray studies of fireclays we have frequently observed the presence of anatase to the extent of 1 or 2% with little or no rutile, and no brookite. Chemical analyses of these clays usually record 1–2% of TiO2 and occasionally more (Ennos and Scott, 1924). The mineralogical form of the TiO2 is usually not stated, but a number of references to the observance of rutile needles give the impression that rutile is the form in which titania occurs in these deposits. Our own observations based on X-ray powder photographs lead us to conclude that anatase is commonly present and that rutile is either absent or present in smaller quantities. We have not detected brookite.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 28 , Issue 199 , December 1947 , pp. 244 - 247
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1947

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.)

References

Butterfield, J. A. (1934). The heavy minerals of the sandstones of the Snail Green boring. Trans. Leeds Geol. Assoc., vol. 5 (pt. 2 for 1932–33), pp. 97–111.Google Scholar
Butterfield, J. A. (1936). An occurrence of anatase (var. octahedrite) in the Millstone Grit of Yorkshire. Ibid., vol. 5 (pt. 3 for 1934–35), pp. 142–152. [M.A. 6–533.]Google Scholar
Coon, J. M., and Lewis, E. J. (1926). On some pottery china clays and the granite from which they are derived. Trans. Ceram. Soc., vol. 25, pp. 490–499.Google Scholar
Ennos, F. R., and Scott, A. (1924). Refractory materials: Fireclays. Analyses and physical tests. Spec. Rep. Min. Res. Geol. Surv. Great Britain, vol. 28.Google Scholar
Gregory, J. W. (1910). The Glenboig fireclay. Proc. Roy. Soc. Edinburgh, vol. 30, pp. 348–360.CrossRefGoogle Scholar
Lapparent, J. de (1934). La boehmite et le diaspore dans les fireclays de l'Ayrshire (Écosse). Compt. Rend. Acad. Sci. Paris, vol. 199, pp. 1629–1631 [M.A. 6–135] ; also Summ. Progr. Geol. Surv. Great Britain, for 1934, pt. 2, pp. 1–7.Google Scholar
Pamfilov, A. V., and Ivancheva, E. G. (1940). On the chemistry of titanium. Part XVI. The transition from the anatase to the rutile structure. (Russ.) Zhurn. Obshch. Khim., vol. 10, pp. 736–744. [M.A. 8–182.]Google Scholar
Thienchi, N. (1946). Transformation de l'anatase en rutile. Compt. Rend. Acad. Sci. Paris, vol. 222, pp. 1178–1179. [M.A. 10–184.]Google Scholar
Wilson, G. V. (1922). The Ayrshire bauxitic clay. Mem. Geol. Survey, Scotland, 1922, 28 pp.; and Trans. Geol. Soc. Edinburgh, 1923, vol. 11, pp. 255–256. [M.A. 2–556.]Google Scholar