Sample No. LEW88175

Location: Lewis Cliff

Dimensions (cm): 5 x 4 x 2.5

Field Number: 5170

Weight (g): 111.3

Meteorite Type: LL3 chondrite

Macroscopic Description: Cecilia Satterwhite

The exterior has a small amount of dull black pitted fusion crust. Areas devoid of fusion crust are rough in texture, brown in color, and show the clastic nature of the meteorite. Oxidation is heavy in areas obscuring the interior features present. Some evaporite deposits are visible on both interior and exterior surfaces.

Thin Section (,2) Description: Brian Mason

The section shows a close-packed aggregate of chondrules and chondrule fragments, up to 1.8 mm across, in a matrix of fine-grained olivine and pyroxene with a little nickel-iron and troilite. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa5-31, mean Fa22 (CV FeO is 19); pyroxene, Fs2-25- The small amount of nickel-iron suggests LL group, and the variability of olivine and pyroxene compositions type 3, hence the meteorite is classified as an LL3 chondrite (estimated LL3.8).