Antarctic Search for Meteorites (ANSMET) Search this
Weight:
0.27 g
Place:
Antarctica
Collection Date:
1977
Notes:
# NASA data for ALH 77182 Weathering: C Fracturing: B Fa: 19 mol % Fs: 17 mol % ²⁶Al: 41 ± 4 dpm/kg NTL: 1 ± 0.1 krad
No fusion crust is apparent on this angular specimen, 12.5x8.0x7.0 cm. The over all color of the sample is orangish-brown. A band, approximately 1.5 cm wide, o yellowish-green material crosses the meteorite on the E-W axis. It is apparent by looking at the T surface that this is not just a surface feature. Many random fractures cover the surface of the meteorite. Numerous irregular (lithic fragments and chondrules, up to as much as 0.5 cm in diameter, are apparent. This sample appears exfoliated. Surfaces revealed by sawing exhibited metallic particles, approximately 1-2 mm it diameter, in addition to chondrules and lithic fragments. The largest of these inclusions is approximately 0.5 mm in length. Three fractures, 3 cm in length, are apparent in the cut face. The meteorite has no weathering rind and no weathering along fractures.
