BSE images (a, c, d) and combined x-ray map (b) in Mg Kα in red, Ca Kα in green, and Al Kα in blue of spinel-rich CAI 1–65 from ALHA77307. The regions outlined in (a) are shown in detail in (c, d). This CAI is a mineralogically-zoned inclusion consisting of nodules of spinel cores corroded by layers of Al,Ti-rich diopside and minor melilite, finally rimmed by diopside with minor forsterite.