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Weight:
38.5 g
Place:
Antarctica
Collection Date:
1977
Notes:
# NASA data for ALH 77233 Weathering: C Fracturing: B Pairing: ALH 77004 Fa: 14-21 mol % Fs: 15-17 mol % ²⁶Al: 47 ± 3 dpm/kg
This stone is 15.0 x l4.0 x l0.5 cm. Thin, (</mm) dull, black, patchy fusion crust is present on the S and E surfaces. The remainder of the stone is shiny reddish-brown. White deposits, presumably evaporites, are present in minor cracks on all exterior surfaces. Chipping and cleaving of the specimen did not expose any non-weathered material.