Nickel isotopic studies in meteorites

We have analyzed the nickel isotopic composition of meteoritic materials by high-precision mass spectrometry. The samples analyzed include almost all meteorite types for which large isotopic anomalies have been reported for oxygen, silver, magnesium and titanium. These samples are C1, C3, L, LL, H and E chondrites. IVB irons, Eagle Station pallasite and inclusion, matrix and 'whole rock' samples of the Allende meteorite. The result is that we have not found any anomaly for nickel isotopic compositions within our accuracy of 0.7per mille for 61Ni/60Ni, 0.4-0.08per mille for 62Ni/60Ni and 1-1.5per mille for 64Ni/60Ni. (orig.)