NWA 2737 or "Diderot" is a martian meteorite classified chassignite (SNC)
THE DIDEROT METEORITE: THE SECOND CHASSIGNITE. P. Beck1, J-A. Barrat2, Ph. Gillet1, I.A. Franchi3, R.C. Greenwood3, B. Van de Moortele1, B. Reynard1, M. Bohn4 and J. Cotten2. http://www.lpi.usra.edu/meetings/lpsc2005/pdf/1326.pdf
CHASSIGNITE NWA 2737 or "Diderot" http://www2.jpl.nasa.gov/snc/nwa2737.html