Name : NWA 6231 Class : Carbonaceous chondrite CK4 S1/W2 Region: Erfoud, Maroko Date : 12.2009 TKW : 1724g Big full slices CK4 with interesting matrix.
Distinct chondrules and sparse CAI. Olivine (Fa33.7-34.0; FeO/MnO = 135-175; Cr2O3 = 0.04-0.05 wt.%), clinopyroxene (Fs10.5-16.5Wo46.5-48.5), intermediate plagioclase and chromian magnetite. Orthopyroxene is absent. Dr T. Irving
: NWA 6231
