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Kingite, a new hydrated aluminium phosphate mineral from Robertstown, South Australia

Published online by Cambridge University Press:  14 March 2018

K. Norrish ,
Lillian E. R. Rogers  and
R. E. Shapter
K. Norrish
Affiliation:
Division of Soils, Commonwealth Scientific and Industrial Research Organization, Adelaide, South Australia
Lillian E. R. Rogers
Affiliation:
Division of Soils, Commonwealth Scientific and Industrial Research Organization, Adelaide, South Australia
R. E. Shapter
Affiliation:
Division of Soils, Commonwealth Scientific and Industrial Research Organization, Adelaide, South Australia
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Summary

A new hydrated aluminium phosphate mineral, kingite, from phosphate workings near Robertstown, South Australia, has an idealized formula Al2O3.Al(OH)3.P2O5.9H2O, with some replacement of OH by F. The specific gravity is 2·2 to 2·3, refractive index 1·514, and percentage chemical composition Al2O3 31·92, P2O5 28·63, H2O 37·93. The three strongest lines on the X-ray diffraction pattern are 9·1, 3·45, and 3·48 Å. Kingite changes to a less hydrated phase between 154° C. and 163° C., which is also considered to be a new aluminium phosphate (meta-kingite) with idealized formula Al2O3.Al(OH)3.P2O5.4H2O. The strongest lines of its X-ray diffraction pattern are at 7·4, 5·02, and 37·19 Å.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 31 , Issue 236 , March 1957 , pp. 351 - 357
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1957

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References

1 Mining Review, Dept. of Mines, South Australia, 1956, no. 99, p. 25.Google Scholar

2 The Geology of the Commonwealth of Australia, London, 1950, vol. 1, p. 350.Google Scholar