Rare, IAB-sHL Iron Meteorite NWA 4710

Exqusite NWA 4701 specimens with brilliant etch pattern!

Classification: Iron meteorite (IAB-sHL) Petrography: Fine octahedrite, attractive. There is much fine plessite, 40-50% of the area. Schreibersite is present as small, 0.2 mm wide, 0.3 to 0.5 mm long, grains in the centers of wide kamacites, and is especially abundant at intersections of kamacite bands. No troilite observed. Paired with NWA 4706 and NWA 3200; kamacite bandwidth 0.4±0.1 mm. Geochemistry: Co (mg/g) 5.49, Ni (mg/g) 107.8, Ga (µg/g) 22.0, Ge (µg/g) 67, As (µg/g) 23.5, Ir (µg/g) 0.194, Au (µg/g) 2.34. Submitter: J. T. Wasson, UCLA.