Low TKW Saharan Iron NWA 4700! NWA 4700 is the Official name for this beautiful IAB-sLL medium octahedrite iron meteorite from the Saharan desert.
Writeup from Meteoritical Bulletin online:
Northwest Africa 4700 (NWA 4700)
Classification: Iron meteorite (IAB-sLL)
Petrography: Large schreibersite visible on top and bottom surfaces of 4 mm slice. No FeS observed. Kamacite contains abundant rhabdites. No silicates recognized. Bandwidth variable, 1.0 to 1.6 mm. Presumably purchased at same time as the very similar NWA 4703.
Geochemistry: Co (mg/g) 5.00, Ni (mg/g) 80.0, Ga (μg/g) 75.4, Ge (μg/g) 349, As (μg/g) 17.0, Ir (μg/g) 2.75, Au (μg/g) 1.84.
Submitter: J. T. Wasson, UCLA.
The following 706 gram NWA 4700 End-Cut is available for University or Museum acquisition, (trade or purchase) or the advanced collector of rare Iron meteorites. It is covered in a deep, dark chocolate brown colored crust and has an etched face revealing a beautiful medium octahedrite Widmanstatten pattern.
NEW! Price: $4,995.00!
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