Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-27T06:08:29.093Z Has data issue: false hasContentIssue false
  • English
  • Français

Lithiophorite from the Leeht mines, Tomintoul, Banffshire

Published online by Cambridge University Press:  05 July 2018

M. J. Wilson ,
M. L. Berrow  and
W. J. McHardy
M. J. Wilson
Affiliation:
The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen
M. L. Berrow
Affiliation:
The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen
W. J. McHardy
Affiliation:
The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen
Get access Rights & Permissions [Opens in a new window]

Summary

The constituent manganese minerals of an ore body located at the Lecht mines near Tomintoul include cryptomelane and lithiophorite. The latter, now known to occur extensively in soils, was characterized by X-ray, thermal, and electron microscope techniques. Lithiophorite yields a distinctive differential thermal curve and this was studied in some detail. A platy morphology is revealed under the electron microscope and from selected-area electron diffraction patterns it was concluded that the b parameter of the mineral is 8·73 Å, three times the value determined by Wadsley (1952). As suggested by Wadsley, this could arise from the distribution of lithium ions. Chemical analysis shows that the Lecht lithiophorite is slightly unusual in that it has a high iron and zinc content but is relatively low in cobalt. The associated cryptomelane contains a significant amount of thallium.

Type
Research Article
Information
Mineralogical Magazine , Volume 37 , Issue 289 , March 1970 , pp. 618 - 623
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1970

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

Brindley, (G. F.) and de Kimpe, (C.), 1961. Amer. Min. 46, 1005.Google Scholar
Faulring, (G. M.), Zwicker, (W. K.), and Forgeng, (W. D.), 1960. Amer. Min. 45, 946.Google Scholar
Fleischer, (M.) and Richmond, (W. E.), 1943. Econ. Geol. 38, 269.CrossRefGoogle Scholar
Fleischer, (M.) and Faust, (G. T.), 1963. Schweiz. rain. petr. Mitt. 43, 197.Google Scholar
Hinxman, (L. W.), 1896. Mem. geol. Surv. Scotland, 75.Google Scholar
Mackenzie, (R. M.), 1967. Aust. dourn. Soil Res. 5, 235.CrossRefGoogle Scholar
Mitchell, (B. D.) and Mackenzie, (R. C.), 1959. Clay Min. Bull. 4, 31.CrossRefGoogle Scholar
Mitchell, (R. L.) 1964. Tech. Commun. Commonw. Bur. Soil Sci. 44A.Google Scholar
Mitchell, (R. L.) and Scott, (R. O.), 1957. Appl. Spectrosc. 11, 6.CrossRefGoogle Scholar
Mitchell, (R. S.) and Meintzek, (R. E.), 1967. Amer. Min. 52, 1545.Google Scholar
Ramsdell, (L. S.), 1932. Ibid. 17, 143.CrossRefGoogle Scholar
Scott, (R. O.), 1941. Analyst, London, 66, 142.CrossRefGoogle Scholar
Scott, (R. O.) and Ure, (A. M.), 1958. Ibid. 83, 561.CrossRefGoogle Scholar
Shaw, (D. M.), 1957. Phys. Chem. Earth, 2, 164.CrossRefGoogle Scholar
Taylor, (R. M.), 1968. dourn. Soil Sci. 19, 77,CrossRefGoogle Scholar
Taylor, (R. M.) and Mackenzie, (R. M.), 1966. Must. Journ. Soil Res. 4, 29.CrossRefGoogle Scholar
Taylor, (R. M.) and Mackenzie, (R. M.) and Norrish, (K.), 1964. Ibid. 2, 235.CrossRefGoogle Scholar
Wadsley, (A. D.), 1952. Acta cryst. 5, 676.CrossRefGoogle Scholar