Antarctic Search for Meteorites (ANSMET) Search this
Place:
Antarctica
Collection Date:
1995
Notes:
# NASA data for GRO 95652 Weathering: B/Ce Fracturing: B/C Fa: 0.3-16 mol % Fs: 13-4 mol %
Ninety percent of the exterior of this carbonaceous chondrite is covered by a dull brown/black fusion crust, rough in texture. The matrix is black, soft and friable. Evaporites are present and inclusions are rusty to light colored.
The section shows numerous chondrules and irregular aggregates, up to 3 mm across, in a black matrix. Trace amounts of metal and sulfide are present as minute grains, mostly within the chondrules. Chondrule types are mainly porphyritic or granular olivine. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa0.3-16, mean Fa₃; pyroxene, Fs₄₋₁₃. The meteorite is classified as a C3 chondrite of the Vigarano subtype.
