The meteorites are howardites. Kathleen McBride Both of these meteorites' exterior surfaces are rough, black and granular in appearance. EET99407 has some gray-black fusion crust. The interiors have a granular crystalline texture that is somewhat friable. The matrix is gray to black in color with dark gray crystalline mineral grains cemented by fine rusty material.
Some areas appear like they've been melted together.
These meteorites are so similar that a single description suffices. Minor chromite and iron sulfides are also present. The rocks are moderately shocked, with planar fractures in olivine and mosaicism in feldspar. The meteorites are probably brachinites. T.K.Mayeda and R.N.Clayton.