NWA 6903 Slices
Northwest Africa (NWA) 6903 is a scarce but very attractive desert iron originally acquired as a single mass in the vicinity of Khourbiga, Morocco during 2008. Along with widely-known iron meteorites such as Henbury and Whitecourt, 6903 belongs to the group IIIAB, but its compositional structure indicates it is not paired with any other known iron, meaning it is likely a unique and independent fall. NWA 6903 is a medium octahedrite and its bright and shimmering etch pattern displays striking, lacy, interwoven lamella somewhat reminiscent of Toluca (Mexico). Some slices show the presence of the nickel iron phosphide schriebersite, a rare mineral that is only found in one locality on Earth.