High-precision Mg and Cr isotope data of five CAIs from Allende will be presented. The δMg* of all CAIs shows strong correlation with the Al/Mg ratio, defining a line with a slope that translates to 26Al/27Al of ~5 x 10-5. The Cr from the spherical CAIs shows anomalies in both ε53Cr and ε54Cr, with ε53Cr correlating with 55Mn/52Cr. Further chronological implications, as well as the petrological properties of the CAIs will be discussed.
