Sample No.: PCA91129; 91383; 91398; 91444; 91451; 91461; 91475; 91477; 91481

Location: Pecora Escarpment

Dimensions (cm): 2.2 x 1.7 x 0.5; 3.5 x 3.2 x 2.7; 2.6 x 1.1x 0.3; 1.5 x 1.5 x 0.7; 2.6 x 2.2 x 1.5; 4.0 x 1.7 x 2.0; 2.8 x 3.0 x 2.1; 2.5 x 2.0 x 1.4; 1.0 x 0.9 x 0.4

Weight (g): 4.3; 48.9; 2.6; 2.6; 17.7; 27.5; 29.9; 16.3; 0.6

Meteorite Type: EL3 chondrite

Macroscopic Description: Robbie Marlow

Five of these chondrites are mostly covered with brown, oxidation-haloed fusion crust. The interior of all the stones is dark brown. Abundant chondrules are present, several were noted protruding from the exterior surfaces. Evaporite deposit was noted on 91444.

Thin Section (PCA91129,2; 91383,2; 91398,2; 91451,2) Description: Brian Mason

These sections are so similar that a single description suffices. Chondrules are abundant, ranging up to 1.2 mm across; they consist of prismatic or fine-grained pyroxene. The groundmass consists largely of granular pyroxene, with lesser amounts of nickel-iron and sulfides, and a little feldspar and an SiO2 phase, probably cristobalite. Microprobe analyses show that the pyroxene is almost pure MgSiO3, with a few grains showing minor iron content, up to 8% FeO. The feldspar is almost pure albite. The nickel-iron contains 2.7-2.9% Si. The meteorites are classified as EL3 chondrites and are paired with PCA82518 group.