Name: LaPaz Icefield 02277 This is an OFFICIAL meteorite name. Abbreviation: LAP 02277 Observed fall: No Year found: 2002 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 7.8 g
Macroscopic Description: Kathleen McBride
70% of the exterior is covered with rough purplish black fractured fusion crust. The interior of this carbonaceous chondrite has a black, chalky matrix with black to dark gray inclusions.
Thin Section (,2) Description: Tim McCoy, Cari Corrigan
The section consists of a few small chondrules (up to 0.5 mm) that have been completely replaced by phyllosilicate set in an Fe-rich serpentine matrix. No isolated mineral grains or CAIs are apparent; sulfide and carbonate grains are present. Unaltered olivine or pyroxene grains of sufficient size for microprobe analyses were not found. The meteorite is a highly altered CM chondrite probably of petrologic type 1.