Miyake-jima Anorthite: A Lunar Crustal Material Analog

High calcic (~95% anorthite) plagioclase is the key mineral comprising the primary lunar crustal suites that cover over 60% of the Moon's surface.Pristine crystals of similar high calcic plagioclase are rare occurrences on Earth, which creates a roadblock to using terrestrial material as lunar crustal analogs.We discuss the potential of a particular megacrystic anorthite (An 95.51 0.31 ) occurring in the basaltic lava flows of island arc volcano in Miyake-jima, Japan as an material analog.A comprehensive analytical routine for the Miyake-jima anorthites has been performed to explore intra-and inter-crystalline heterogeneities in terms of major, minor, and trace elements.These anorthites show flat concentration gradients across core profiles for all This is the peer-reviewed, final accepted