Sample No.: LEW87057; 87237; 87285

Location: Lewis Cliff

Field Number: 4051;4794;4791

Dimensions (cm): 1 x 0.5 x.0.4; 1.8 x 1.2 x 0.4; 1 x 0.5 x 0.4

Weight (g): 0.4; 1.9; 0.5

Meteorite Type: E3 chondrite

Macroscopic Description: Cecilia Satterwhite and Carol Schwarz

Little fusion crust remains on these three chondrites. Weathering has taken its toll and left their interiors severely oxidized with no features recognizable. All the material from LEW87285 was made into thin sections; potted material is still available from 87057.

Thin Section (LEW87057.1: 87237.2: 87285.1) Description: Brian Mason

These three meteorites are identical and can be confidently paired with LEW87223. The sections show a closely packed aggregate of chondrules, up to 1.2 mm across, together with abundant metal grains and minor sulfide. Weathering is extensive, with limonitic staining and areas of brown limonite throughout the sections. The chondrules consist of granular or radiating pyroxene. Most of the pyroxene is close to MgSiO3 in composition, but a few more Fe-rich grains were analyzed. One grain of almost pure forsterite (FeO 0.3%) was found in 87057. The metal has a variable Si content, up to 0.6%. The meteorites are classified as E3 chondrites.