Dar al Gani 637 comes from a multiple fall. With a single mass of 1149g, DaG 637 is the main individual meteorite of the fall.

Meteorites seldom land intact. Often the original fireball bursts into fragments when it enters the atmosphere, catapulting its pieces along similar trajectories that hit the soil in an extended area termed the ellipse of fall. Precise location information on each find thus helps pin down the fall trajectory, making future prospecting work all that much easier.

Each random find or fall location in the desert becomes a point of departure for a more localized, focused and specific search. Dar al Gani 637, the first find on this part of the plateau, was the starting point leading to the following discoveries.

All of the above meteorites are most probably paired specimens. Fayalite and forsterite percentage are very close. To the unaided eye, polished sections show the same characteristics. Petrologic type, which is still subject to human interpretation, varies in range from 4 to 6 depending on the thin section sampled and studied.

Slice 103, 25 grams

Typical structure of an ordinary L chondrite composed of olivine and hypersthene (magnesium iron silicate). Within, some chondrules, metallic iron and troilite (FeS) inclusions are found embedded within a light colored matrix.