Antarctic Search for Meteorites (ANSMET) Search this
Place:
Antarctica
Collection Date:
2004
Notes:
# NASA data for LAP 04807 Weathering: B/C Fracturing: A/B Pairing: LAP 04527 Fa: 1-61 mol % Fs: 5 mol %
The exteriors of these paired carbonaceous chondrites have varying amounts of fusion crust (40%-90%) and the colors range from purplish black to brown. The interiors are generally black with some oxidation, most have a powdery texture and contain chondrules of various colors. Varying degrees of oxidation exist in all these meteorites.
The meteorites are likely paired and a common description suffices. The sections consist of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa₁₋₆₁, orthopyroxene is Fs₁₋₄₂. The meteorites are CM2 chondrites.
