A Rather Thick, Multilayered, Accretionary Rim on A Rather Large CAI in the NWA 10758 CV3 Chondrite

Northwest Africa (NWA) 10758 is a Bali type oxidized CV3, and section JSC1 contains a large (~ 2.4 x 1.4 cm), melilite-rich, type A Ca-Al rich inclusion (CAI), briefly introduced by Ross et al. [1]. The exceptional feature of this CAI is a thick (locally >5mm) fine- to coarse-grained, accretionary rim exhibiting at least 6 distinct layers. As such, this rim may sample a very wide region of the nebula, and mineralogically-diverse “clouds” of dust, and thus warrants detailed characterization.