Sample No.: LEW87232

Location: Lewis Cliff

Field Number: 4796

Dimensions (cm): 3.0 x 2.5 x 2.0

Weight (g): 23.1

Meteorite Type: C2R chondrite

Macroscopic Description: Carol Schwarz

LEW87232 is a rounded stone with small patches of fusion crust remaining on one side. This specimen appears to be more weathered at the very center than on the exterior. The matrix is yellowish. Some metal was noted.

Thin Section (,2) Description: Brian Mason,

The section shows numerous chondrules (up to 1.8 mm across), chondrule fragments, and mineral grains in a translucent brown matrix. Chondrules are mainly granular or porphyritic olivine and olivine-pyroxene. Minor amounts of nickel-iron and a little sulfide are present as small grains scattered through the matrix or sometimes concentrated on chondrule rims. Many of the metal grains are rimmed with brown limonite. The matrix appears to consist largely of phyllosilicates. Microprobe analyses show the olivine is close to Mg2SiO4 in composition (Fa0.6-2, mean Fa1.0, CV FeO = 56); pyroxene is enstatite or clinoenstatite, Fs0.5-9. One small xenocryst of plagioclase, An19, was analyzed. The meteorite is tentatively classified as a C2 chondrite of the Renazzo subtype.