Antarctic Search for Meteorites (ANSMET) Search this
Weight:
170.199 g
Place:
Antarctica
Collection Date:
1977
Notes:
# NASA data for ALH 77271 Weathering: C Fracturing: A Pairing: ALH 77271 Fa: 18 mol % Fs: 16 mol % ²⁶Al: 39 ± 2 dpm/kg
This is a complete, rounded specimen. Approximately 25% of the total sample is covered with a dull black fusion crust. The crust appears in small patches on the meteorite's surface and is approximately 1 mm thick. The portion of the meteorite not covered with fusion crust is a dark brown weathered surface. Small inclusions are visible on this surface. The sample was difficult to chip. When the material was collected for thin section preparation, no fresh metal was observed. The sample fractured along a small fissure. The interior of the bulk meteorite was weathered along this fissure. Dimensions approximately 8.0x7.5x5.0 cm.
