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An occurrence of todorokite in the deuteric stage of a basalt

Published online by Cambridge University Press:  14 March 2018

L. J. Lawrence ,
P. Bayliss  and
Paul Tonkin
L. J. Lawrence
Affiliation:
School of Applied Geology, University of New South Wales, Australia
P. Bayliss
Affiliation:
School of Applied Geology, University of New South Wales, Australia
Paul Tonkin
Affiliation:
School of Applied Geology, University of New South Wales, Australia
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Summary

An occurrence of todorokite having a formula is recorded from Ardglen, 150 miles N.N.W. of Sydney, New South Wales. The composition of Ardglen todorokite is somewhat simpler than previously recorded occurrences, most of which were in manganese and manganese—base-metal ore deposits. The simpler composition is explained in terms of its occurrence as a late deuteric mineral associated with manganocalcite and zeolites in an altered Tertiary basalt. The manganese is believed to have been derived from the deuteric alteration of the augite of the basalt.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 36 , Issue 282 , June 1968 , pp. 757 - 760
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1968

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References

Larson, (T. H.), 1962. Zinc-bearing todorokite from Philipsburg, Montana. Amer. Min., vol. 47, pp. 59–66.Google Scholar
Straczek, (J. A.), Horen, (A.), Ross, (M.), and Washaw, (C. M.), 1960. Ibid., vol. 45, pp. 1174–1184.Google Scholar
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