Abstract
OF the three polymorphs of aluminium hydroxide—gibbsite, bayerite, and nordstrandite—only gibbsite has hitherto been known as a natural mineral, and so the discovery of well-crystallized nordstrandite in Sarawak is noteworthy. The mineral was found in red soil and was tentatively identified as gibbsite from its optical properties, but when sent to London for confirmation it was shown by X-ray examination to be nordstrandite. The following preliminary details of this discovery have resulted from field work by the Agricultural and Geological Departments in Sarawak, and laboratory studies by Miss B. B. Fox and Mr. J. A. Bain in the Mineral Resources Division, Overseas Geological Surveys, London.
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References
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WALL, J., WOLFENDEN, E., BEARD, E. et al. Nordstrandite in Soil from West Sarawak, Borneo. Nature 196, 264–265 (1962). https://doi.org/10.1038/196264b0
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DOI: https://doi.org/10.1038/196264b0
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