Microstructural and Chemical Identity of the Bear Creek and Narraburra Iron Meteorites

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Scientific paper

METALLOGRAPHIC examination of small specimens taken from the Bear Creek (Nin. 352.1γ) and Narraburra (B.M. 1927, 1264) iron meteorites reveals a remarkable similarity of microstructural detail. This similarity of structure is matched by the analytical results of Brown et al.1, who place both bodies in the same gallium-germanium group and report the following detailed analyses for Bear Creek and Narraburra respectively: nickel, 10.14 and 10.22; cobalt, 0.51 and 0.59; chromium, 1.2 and <1 copper, 154 and 157; gallium, 15 and 8.2; germanium, 25 and 29. The values for nickel and cobalt are percentages, the other values are p.p.m.

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