On March 5th, 1960, a bright fireball exploded over the largely rural area of Burkina Faso. Local villagers witnessed the fall and many kilograms of stones were recovered. Later analysis proved the stones were H5 chondrites. Some specimens show an alternate impact melt breccia lithology.
This specimen is an oriented shield with a distinct rollover lip. It appears to be a stone that broke apart in mid-flight, with secondary crust on the broken portion. The rest of the stone is covered in primary fusion crust. There are some faint flowlines visible along the outer edges on the leading side. The trailing side of the stone is bumpy and frothy. It weighs approx. 17 grams.
Refer to the photo. The black centimeter cube is shown for scale and is not included. You are purchasing the specimen shown. Your purchase will include an ID card.
From the Meteoritical Bulletin entry on Gao Guenie :
FALL OF THE GUENIE, UPPER VOLTA, STONY METEORITE
Place of fall: Upper Volta
Date of fall: April, 1960.
Class and type: Stone. Olivine-bronzite chondrite (H4). Olivine Fa18-20.
Number of individual
specimens: A shower, total number not known.
Total weight: Not known, 3.6 kg, four stones, in Paris (Natural History Museum).
Circumstances of fall: Not reported.
Source: Guenie Descriptions of two chondrites fallen in Africa. Meteoritics10, 368 (abs.). See also M. Bourot, 1976. Etude mineralogique de la meteorite de Guenie. 3rd cycle thesis, University of Paris VI