Antarctic Search for Meteorites (ANSMET) Search this
Place:
Antarctica
Collection Date:
1993
Notes:
# NASA data for QUE 93429 Weathering: B/Ce Fracturing: B Pairing: QUE 93429 Fa: 0-10 mol % Fs: 1-6 mol %
Fusion crust is dull, black, and has a rough texture. The interior matrix is dark gray/black and fine-grained. Some metal is present. Evaporite deposit is abundant; it is mostly white along the edge of the fusion crust and red-brown or yellowish in the interior.
The section shows numerous chondrules and irregular aggregates, up to 2.4 mm across, in a black matrix. A minor amount of fine-grained metal and troilite is present, mainly concentrated within chondrules. Brown limonitic staining pervades the section. Microprobe analyses show that most of the olivine in the chondrules is close to Mg₂SiO₄ in composition, but ranges up to Fa₁₀; pyroxene composition is Fs₁₋₆. The matrix appears to consist largely of iron-rich olivine, about Fa₅₀. The meteorite is classified as a C3 chondrite of the Vigarano subtype.
