NWA 6470, Anorthositic Regolith Breccia

This wonderful meteorite is comprised mostly of vitrified 4.3 billion year old Lunar highlands rock.  It’s a complex breccia with at least three major lithologies and a few larger basaltic clasts.  It even has a few unusually large ~mm-sized metal grains entrained in the lighter-grey lithology — metallic remnants of iron-bearing impactors on the surface of the Moon!  This meteorite started out as mostly white/light grey rock, but most of it was melted into black glass by an asteroid impact on the moon; perhaps the same impact that blasted it off of the Moon.

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