thin slice of a classified Martian Meteorite NWA 12564 Found in 2019 in Mauritania TKW 1918g The University of Washington classified the meteorites as rare Martian Shergottite (aphyric, diabasic). Composed predominantly of complexly-zoned clinopyroxene and maskelynite with accessory titanomagnetite, ilmenite, chlorapatite, merrillite, and pyrrhotite. Myrmekitic intergrowths consisting of silica polymorph + relatively sodic plagioclase are associated with more calcic maskelynite and regions of K-rich glass containing blebs of pyrrhotite are also present. Shock stage: high Weathering grade: low 0.53 g 13 x 9 x 2.3 mm international meteorite collector association number #3503 scale cube is 1 x 1 x 1 cm