Sample No. LEW88254; 88261; 88263

Location: Lewis Cliff

Dimensions (cm): 3 x 2 x 1.7;1.7 x 1.5x 1; 2.4x2x 1.3

Field Number: 6045;6090; 6080

Weight (g): 13.5; 17.6; 8.8

Meteorite Type: L3 chondrite

Macroscopic Description: Cecilia Satterwhite

Black fusion crust covers most of these 3 specimens. LEW88263 has one fracture surface. The interior matrix of all three specimens is dark gray to black with abundant 1-3 mm sized chondrules/inclusions. Weathering is moderate.

Thin Section (LEW88254,2; 88261,2; 88263,2) Description: Brian Mason

These meteorites are so similar that a single description will suffice; the possibility of pairing should be considered. They are highly chondritic, with chondrules ranging up to 2.9 mm across. The chondrules are rimmed with dark matrix, which contains a small amount of nickel-iron and troilite. Most of the chondrules are granular or porphyritic olivine and olivine-pyroxene, but radiating and cryptocrystalline pyroxene chondrules were noted; transparent brown glass was seen in one chondrule. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa1-41, mean Fa16 (CV FeO is 54); pyroxene, Fs1-23. The small amount of nickel-iron suggests L group, and the variability of olivine and pyroxene compositions type 3, hence these meteorites are classified as L3 chondrites (estimated L3.4).