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On collophane in Thames gravel

Published online by Cambridge University Press:  14 March 2018

S. E. Ellis  and
G. F. Claringbull
S. E. Ellis
Affiliation:
Department of Mineralogy, British Museum
G. F. Claringbull
Affiliation:
Department of Mineralogy, British Museum
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Extract

In mid-1949 the London Natural History Society set up a committee to investigate and record temporary geological sections in the London area. Among the earliest to be dealt with was the excavation in flood-plain gravel for the foundations of the Concert Hall for the Festival of Britain (1951). Samples of 100-200 grams were taken from two sandlentieles for heavy mineral investigation, and material from one of these, passing 60 mesh and washed by laevigation, yielded, on separation by means of a bromoform-benzene mixture of density about 2"73, an assemblage with abundant garnet, tourmaline, zircon, and kyanite, very occasional staurolite, cassiterite, and fluorite, and moderately abundant collophane.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 29 , Issue 213 , June 1951 , pp. 615 - 619
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1951

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References

1 Ainsley, B. and Ellis, S. E., The London Naturalist, 1950, no. 29 for 1949, pp. 39, 42.Google Scholar

1 Rogers, A. F., Bull. Geol. Soc. Amer. 1924, vol. 35, pp. 535–556.CrossRefGoogle Scholar

1 Dunham, K. C., Claringbull, G. F., and Bannister, F. A., Min. Mug. 1942, vol. 28, pp. 338–343 Google Scholar and pl. xx, figs. 6 and 7.