NWA 10675 (CO3)

Several desert varnished stones totaling 206g were purchased from a Moroccan dealer in January of 2016. A sample was sent to Dr. Anthony Irving who determined the stones to be CO3 Carbonaceous  Chondrites with a weathering grade of low and a shock grade of 2. I sliced the larger stone and prepared several ROUGH POLISHED slices to preserve any chance of seeing the chondrules. The slices are not the prettiest, making them perfect as a starter slice or for someone looking to add a CO3 to their collection at an affordable price. Each slice will come in a quality labeled meteorite display box.

Petrography as follows:

Small chondrules (apparent diameter 200±100 μm), mineral fragments and amoeboid CAI are set in a deep brown matrix (~40 vol.%). Olivine (Fa1.6-59.2; Cr2O3 in ferroan examples 0.08-0.17 wt.%, mean 0.13±0.04 wt.%, N = 8), orthopyroxene (Fs1.0-4.5Wo1.1-3.4, N = 3), diopside (Fs1.3Wo37.1; Fs3.5Wo51.4).

Meteoritical Bulletin entry can be found here.

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