Tissint is the fifth witnessed Martian meteorite fall. It is a Shergottite. Many pieces totaling over 7 kg fell east of Tata, Morocco about 2 AM, July 18, 2011. The stones have a shiny black fusion crust which is glossier over olivine macrocrysts. Olivine macrocrysts and microphenocrysts are held in a finer groundmass of pyroxene, plagioclase (shocked to maskelynite) and other minerals. Small melt pockets and thin veins of black glass are present.