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One of the biggest challenges with the study of extra-terrestrial samples is that much of the geological context is missing, whereas on Earth we can have access to field information about location, orientation, surrounding rocks, etc before even collecting a sample and subsequent laboratory analyses. On-going space missions (OSIRIS-Rex and Hayabusa2) to primitive C-type asteroids (likely parent bodies for carbonaceous chondrite meteorites) are scheduled to return grams to kgs of material in the early 2020s. They will collect samples from a specific asteroid, but the samples they collect will be grabbed from the well-mixed surface regolith, which by its very nature contains little geological context. The carbonaceous chondrites are believed to originate from C-type asteroids, some of which are clearly lithified regoliths and breccias (e.g. Fig 1). As such they offer a unique opportunity to understand what can be determined about the parent asteroid from a mixed regolith from detailed mineralogical, chemical and isotopic investigation. Primitive asteroids near Earth are usually rubble piles, and therefore the regolith is expected to be comprised of all the main lithologies present in the parent body, including the most primitive materials in the inter-clast regions as they are too friable to survive as large clasts. Therefore, part of the project will be to investigate the nature of the inter-clast materials for exotic lithologies and components
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