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The occurrence of nigerite, a new tin mineral in quartz-sillimanite-rocks from Nigeria1

Published online by Cambridge University Press:  14 March 2018

R. Jacobson  and
J. S. Webb
R. Jacobson
Affiliation:
Geological Survey of Nigeria
J. S. Webb
Affiliation:
Geological Survey of Nigeria
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Extract

A new tin mineral, which has been given the name ‘nigerite’, was discovered in June 1944 during au investigation of the tin-bearing pegmatites of Kabba Province, central Nigeria. The chemical and physical properties of nigerite have been determined by F. A. Bannister, M. H. Hey, and H. P. Stadler, and their results will be published in the next number of this Magazine. Dr. Hey's analysis shows SnO2 25·33, Al2O3 50·91, Fe2O3 11·90, ZnO 4·51 %, &c., and the unit-cell contents are given by the formula (Zn,Mg,Fe″)(Sn,Zn)2(Al,Fe‴)12O22(OH)2.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 28 , Issue 197 , June 1947 , pp. 118 - 128
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1947

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Footnotes

1

Published with the permission of the Director of the Geological Survey of Nigeria.

References

page 118 note 2 This mineral was first mentioned in the Nigerian Geological Survey Annual Report, 1944,

page 120 note 1 Jacobson, R. and Webb, J. S., The pegmatites of central Nigeria. Bull. Geol. Surv. Nigeria, 1946, no. 17.Google Scholar

page 121 note 1 M.L. is the abbreviation for ‘Mining Lease’.

page 121 note 2 Greenwood, R., Geology of the plateau tinfields. Interim Report Geol. Surv. Nigeria, 1945, no. 1.Google Scholar