Sample No.: LEW88336

Location: Lewis Cliff

Field Number: 6070

Dimensions (cm): 3 x 2.2 x 2

Weight (g): 29.8

Meteorite Type: LL3 chondrite

Macroscopic Description: Cecilia Satterwhite

Black, pitted fusion crust covers 85% of this unequilibrated chondrite. Cleaving LEW88336 revealed an interior which ranges in color from dark gray to red-brown. Several inclusions are present but one notable one is 5 mm in longest dimension, gray in color, and fine-grained.

Thin Section (,3) Description: Brian Mason

The section shows abundant chondrules and chondrule fragments, up to 3.1 mm across, in a dark matrix consisting largely of finely granular olivine and pyroxene with accessory amounts of troilite and nickel-iron. A variety of chondrule types is present, mainly granular and porphyritic olivine and olivine-pyroxene, but also some radiating to cryptocrystalline pyroxene chondrules. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa4-41, mean Fa23 (CV FeO is 43); pyroxene, Fs3-17. 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 LL3.5).