Antarctic Search for Meteorites (ANSMET) Search this
Weight:
10.49 g
Place:
Antarctica
Collection Date:
1978
Notes:
# NASA data for ALH 78074 Weathering: B Fracturing: B Fa: 24 mol % Fs: 21 mol % ²⁶Al: 66 ± 3 dpm/kg
This is not a complete specimen. Shiny fusion crust (1-2 mm thick) covers B, W, and portions of S, N, and E surfaces. Polygonal fractures are present on the B and N surfaces. Where fracture surfaces are present they are rough and slightly weathered and stained by iron oxidation. The matrix of the sample is light gray and included clasts and chondrules are darker gray. Some oxidation halos are apparent.
