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Vanadium-Bearing Margarite from the Lachlan Fold Belt, New South Wales, Australia

Published online by Cambridge University Press:  05 July 2018

V. J. Morand
V. J. Morand*
Affiliation:
Department of Geology and Geophysics, University of Sydney, N.S.W., Australia, 2006
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Abstract

Margarite occurs in Ordovician black slate within the contact aureole of the Wyangala Batholith, in the Lachlan Fold Belt in New South Wales. This occurrence is the first described from New South Wales. It is a regional metamorphic mineral replacing chiastolitic andalusite, and contains up to 1.07% V2O3 and up to 0.37% Cr2O3. Vanadium and chromium here substitute for octahedral aluminium. Margarite is produced by a local reaction in which Ca and H2O are introduced into andalusite grains. There is a significant paragonite component in the margarite but negligible muscovite solid solution.

Type
Mineralogy and Crystal Structures
Information
Mineralogical Magazine , Volume 52 , Issue 366 , June 1988 , pp. 341 - 345
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1988

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Footnotes

*

Present address: Department of Earth Sciences, Monash University, Clayton, Victoria, Australia, 3168.

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