Antarctic Search for Meteorites (ANSMET) Search this
Weight:
2.97 g
Place:
Antarctica
Collection Date:
1977
Notes:
# NASA data for ALH 77224 Weathering: C Fracturing: C Pairing: ALH 77004 Fa: 19 mol % Fs: 17 mol % ²⁶Al: 59 ± 2 dpm/kg
Specimen is angular, extremely weathered and friable. When meteorite was removed from cold storage and placed in the processing cabinet, many pieces fell off the main mass. There are many surface fissures that appear to continue throughout the meteorite. The B surface (not photographed) shows patches of fusion crust (very thin) and remnants of regmaglypts. The reddish-brown iron-oxide staining that is the prevalent color has an iridescent-like sheen on the B surface. The remaining exterior surfaces have small patches of a brownish-black fusion crust. Ice was observed in surface cracks when the specimen was removed from cold storage. This is not a complete specimen. The T surface appears to be a fracture surface. Small inclusions were observed on the weathered exterior surface. The T.S. and T.L. chips were taken from chips generated from sample when removed from cold storage. Approximate size : 13 x 14 cm.
