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Awaruite, iridian awaruite, and a new Ru-Os-Ir-Ni-Fe alloy from the Sakhakot-Qila complex, Malakand Agency, Pakistan

Published online by Cambridge University Press:  05 July 2018

Zulfiqar Ahmed  and
J. C. Bevan
Zulfiqar Ahmed
Affiliation:
Department of Geology, King's College, Strand, London, WC2R 2LS
J. C. Bevan
Affiliation:
Department of Mineralogy, British Museum (Natural History), Cromwell Road, London, SW7 5BD
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Abstract

The authors report the first occurrence of awaruite in Pakistan, in the Sakhakot-Qila ultramafites. Electron-microprobe analysis reveals a considerable variation in the compositions of awaruites from different parts of the complex. The presence of copper in awaruite, in amounts up to 5 atomic percent, is also reported for the first time. In one chromitite body, an iridian awaruite with up to 27 wt% of iridium occurs in association with ‘normal’ awaruite and a new Ru-Os-Ir-Ni-Fe alloy. The awaruites are discussed in relation to those from other localities.

Type
Research Article
Information
Mineralogical Magazine , Volume 44 , Issue 334 , June 1981 , pp. 225 - 230
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1981

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References

Ahmed, Z. (1978). Mineral. Mag. 42, 155-7.CrossRefGoogle Scholar
Botto, R. I., and Morrison, G. H. (1976). Am. J. Sci. 276, 241-74.CrossRefGoogle Scholar
Chamberlain, J. A., McLeod, C. R., Traill, R. J., and Lachance, G. R. (1965). Can. J. Earth Sci. 2, 188-215.CrossRefGoogle Scholar
Crocket, J. H. (1979). Can. Mineral. 17, 391-402.Google Scholar
Golding, H. G., and Bayliss, P. (1968). Am. Mineral. 53, 162-83.Google Scholar
Hey, M. H. (1955). An index of mineral species and varieties. British Museum (Nat. Hist.), London.Google Scholar
Hultin, I. (1968). Norsk Geol. Tidsskr. 48, 179-85.Google Scholar
Kanehira, K., Banno, S., and Yui, S. (1975). J. Japan Ass. Min. Petr. Eco. Geol. 70, 388-94.CrossRefGoogle Scholar
Nickel, E. H. (1958). Geol. Soc. Am. Bull. 69, 1623.Google Scholar
Nickel, E. H. (1959). Can. Mineral. 6, 307-19.Google Scholar
Page, N. J. (1971). U.S. Geol. Surv. Prof. Pap. 694.Google Scholar
Sinton, J. M. (1976). Mineral. Mag. 40, 792-4.CrossRefGoogle Scholar
Skey, W. (1885). Trans. N.Z. Inst. 18, 401 2.Google Scholar
Williams, K. L. (1960). Am. Mineral. 45, 450-3.Google Scholar