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The Occurrence of Robertsite in a Sedimentary Phosphate Ore from Thailand

Published online by Cambridge University Press:  05 July 2018

Steven J. Van Kauwenbergh ,
Michelle Cooper-Fleck  and
Marilyn R. Williams
Steven J. Van Kauwenbergh
Affiliation:
Fertilizer Technology Division, International Fertilizer Development Center, Muscle Shoals, Alabama 35662, USA
Michelle Cooper-Fleck
Affiliation:
Fertilizer Technology Division, International Fertilizer Development Center, Muscle Shoals, Alabama 35662, USA
Marilyn R. Williams
Affiliation:
Fertilizer Technology Division, International Fertilizer Development Center, Muscle Shoals, Alabama 35662, USA
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Abstract

During a mineralogical study of guano-derived sedimentary phosphate ore from the Lamphun area of northwest Thailand, robertsite [Ca6(H2O)6Mn3+9O6(PO4)9.3H2O] was identified and concentrated to a level suitable for X-ray diffraction and chemical analysis. Robertsite has previously been described only in association with altered phosphatic pegmatites. This new occurrence in a phosphate deposit indicates that it may be found in a broad spectrum of sedimentary rocks.

Keywords

robertsitephosphate oreThailand
Type
Mineralogy
Information
Mineralogical Magazine , Volume 52 , Issue 367 , September 1988 , pp. 505 - 508
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1988

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References

Keller, P. (1974) Phosphatmineralien aus pegmatiten sudconcentrate. westafrikas. Aufschluss, 25, 577-91.Google Scholar
Moore, P.B. (1974) Jahnsite, segelerite, and robertsite, three new transition metal phosphate species. Am. Mineral. 59, 48-59.Google Scholar
Mücke, A. (1978) Sekundäire Phosphatmineralien aus dem Pegmatit wm Hagendorf Opf. und deren Paragenesen. Aufschluss. 29, 211-17.Google Scholar
Nriagu, J.O. (1984) Phosphate minerals: their properties and general modes of occurrence (Nriagu, J.O., and Moore, P.B., eds.) Phosphate Minerals: New York, Springer-Verlag, 1-136.CrossRefGoogle Scholar
Sandell, E.B., Hey, M.H., and McConnell, D. (1939) The composition of francolite. Mineral. Ma,q. 25, 395-401.Google Scholar
Sheldon, R.P. (1984) Phosphate Resource Assessment and Exploration in Thailand. Report to the Thai Department of Mineral Resources, 51 pp.Google Scholar
Suwanich, P. (1980) Phosphate exploration in Lampan,q and Lamphun Province. Economic Geology Division of the Department of Mineral Resources, Thailand, 8 pp.Google Scholar