88.2 grams. 50 x 40 x 30 mm. CK5
Fall not observed. Found 1987 in Antarctica.
Location Map of Antarctic Finds
AMN writes:
Macroscopic Description - René Martinez, Carol Schwarz and Roberta Score
All of these specimens have weathered and fractured patchy fusion crust with salt present in some cases. Interiors are fine-grained and light to dark gray. Dark inclusions, up to 1.5 mm, are plentiful. A 5 mm spherical black aphanitic inclusion was found in EET87507.
Thin Section Description (,8) - Brian Mason
The section of EET87526 shows an aggregate of small (0.01-0.02 mm) olivine grains and a little opaque material, with sparse chondrules up to 1.5 mm across. Fusion crust, 0.6 mm thick, borders part of the section. Olivine composition is Fa29; a little pyroxene, Wo1Fs24, and plagioclase, An49, are present. The opaque material is mainly magnetite with a little pentlandite. This is a C4 chondrite. The sections of EET87507 and 87529 are so similar to EET87526 in textures and mineral compositions that the meteorites can be confidently paired. EET87508, 87514, 87519, 87525, and 87527 also appear to belong to this group of C4 chondrites. These five were examined in thin section but were not analyzed by electron microprobe.
|