Characteristics of a New Carbonaceous, Metal-Rich Lithology Found in the Carbonaceous Chondrite Breccia Aguas Zarcas

I. Kerraouch, A. Bischoff, M. E. Zolensky, A. Pack, M. Patzek, E. Wölfer, C. Burkhardt, M. Fries

51st Lunar and Planetary Science Conference (2020), Abstract #2011


“The Aguas Zarcas meteorite fell in Costa Rica on 23 April 2019 at 21:07 local time, with a total mass of about 27 kg. Hundreds of fusion-crusted stones ranging from 0.1 to 1868 g were recovered (The Meteoritical Bulletin). The meteorite was classified as a CM chondrite, but some lithologies show a different texture to that of CM. In this study, we investigated the petrography, mineralogy, chemistry, and isotopic composition of an unusual “metal-rich lithology” from this fresh fall.