One observer reported that the fireball was initially yellow in color, then turned green, illuminating the entire area before it appeared to break into two pieces; two sonic booms were heard over the valley.

[citation needed] In October 2011, nomads began to find very fresh, fusion-crusted stones in a remote area of the Oued Drâa intermittent watershed, centered about 50 kilometres (31 mi) ESE of Tata and 48 kilometres (30 mi) SSW of Tissint village, near the Oued El Gsaïb drainage and also near El Ga’ïdat plateau known as Hmadat Boû Rba’ine.

Current As of 2012[update] records show that meteorite hunters have discovered 754 at specific sites in Morocco as well as thousands of others from uncertain locations.

The rocks are variably coated by a shining black fusion crust, characterized by thicker layers on exterior ridges and glossy regions above interior olivine phenocrysts and impact melt pockets.

[7] Given the widely dispersed shock melting observed in Tissint, alteration of other soft minerals (carbonates, halides, sulfates and even organics), especially along grain boundaries, might have occurred.

[13] An analysis by Hasnaa Chennaoui-Aoudjehane, a Moroccan meteoriticist of Hassan II University in Casablanca, determined that the meteorite is a depleted picritic shergottite similar to EETA79001A.

The internal structure of the meteorite includes olivine macrocrysts (or nodules) embedded into a fine-grained matrix made of pyroxene and feldspar glass.

[12][14] The overall composition of the Tissint meteorite corresponds to that of aluminium-poor ferroan basaltic rock, which likely originated as a result of magmatic activity at the surface of Mars.