Gao-Guenie is one of the most significant witnessed meteorite falls from Burkina Faso. On the evening of 5 March 1960, at approximately 17:00 local time, a brilliant fireball crossed the skies over southern Burkina Faso (then Upper Volta), followed by several powerful detonations heard over distances exceeding 100 km. Thousands of meteorite fragments subsequently fell across an extensive strewn field estimated at roughly 70 km² between the villages of Gao and Guenie. Eyewitness accounts describe sonic explosions strong enough to damage small structures and break tree branches. Numerous stones were recovered shortly after the fall, with additional specimens continuing to be found in the region for decades thereafter. The total recovered mass is believed to exceed one metric tonne, making Gao-Guenie one of the largest documented ordinary chondrite showers in the region. For many years, meteorites recovered from the area were separated into two distinct falls known as “Gao” and “Guenie.” Detailed mineralogical and petrographic studies later demonstrated that both represented material from the same meteorite event. In 1999, the Meteoritical Society officially paired the two under the collective name “Gao-Guenie.” Classified as an H5 ordinary chondrite, Gao-Guenie is composed primarily of olivine and pyroxene, with abundant dispersed iron-nickel metal and troilite. The designation “H” refers to its relatively high metallic iron content, while petrologic type 5 indicates that the meteorite experienced substantial thermal metamorphism within its parent asteroid. Despite this metamorphism, remnant chondrules remain visible in many specimens. Gao-Guenie is particularly appreciated among collectors for its characteristic dark fusion crust, attractive regmaglyptic surfaces, and the frequent presence of secondary fusion crust formed during atmospheric fragmentation. Many specimens also display shock-darkened zones and metal-rich interiors that provide valuable insight into impact processes affecting ordinary chondrite parent bodies. As a witnessed fall with well-established provenance and extensive scientific documentation, Gao-Guenie occupies an important place in both meteoritics research and serious private collections. Specimens from this historic fall represent authentic material from the early Solar System, formed approximately 4.56 billion years ago. I bought this beautiful specimen from Mike Jensen, and it comes with both my certificate of authenticity and his, documenting the ownership chain. I am a member of the Meteoritical Society (#7743) and the Global Meteorite Association (GMA, #G0129), and I have been collecting meteorites for more than 16 years.