Northwest Africa 5733                                                                                                                                     
Talsint area, Morocco
Found December 2008.
Carbonaceous chondrite (CK4)

History: Purchased in Morocco in December 2008 by PThomas.
Physical characteristics:  One stone weighing 15.03 g. 
Petrography: (N. Chaumard and B. Devouard, UBP) Chondrules range from 200 mm to 1 mm and are equilibrated. Matrix have an unusual marble pattern, with coarse-grained texture of olivine and feldspar. Matrix crystals contained numerous micron-sized vacuoles and inclusions. CAIs are small and very scarce.
Mineral compositions and geochemistry: Olivine, Fa33.5+0.2. Pyroxene, Fs10.8+0.3. Plagioclase composition in matrix, An38.