NWA 5958 C3.0-ung was 286 grams of fragments. We bought a fragment from Greg Hupé and had thin sections made from it.
The Met Bull entry and two papers are here:
http://www.lpi.usra.edu/meteor/metbull.php?code=50844
http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2343.pdf
http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2325.pdf











