NWA 2933 (L3.3 Regolith Breccia) with Black Inclusion
Northwest Africa 2933
(NWA 2933) was found in the Sahara Desert, Africa as a single
stone weighing 511g. NWA 2933 has been classified as a very rare
L3.3 Regolith Breccia, with a Shock Rating of S2 and a
Weathering Level of W2. A regolith can be described as a mixing
of different compositions and/or petrologic stages with a fine
matrix at the surface of an asteroid, or moon, etc. This can be
discerned (especially under magnification) in the sample below
where there are areas of smaller brown/orange chondrules/matrix
set amongst the pale grey matrix. There are numerous unusual
chondrules and inclusions within this slice such as the large
obvious black inclusion at the bottom centre. This inclusion is
relatively featureless apart from a few small pieces within it.
These look like small chondrules or chondrule fragments. In
fact, these type of inclusions have been theorised to be heavily
altered pieces of CM or CI material with phantom chondrules.
This specimen is part of the Meteorites Australia Collection
(MA.05.0103).
NWA 2933 (L3.3 Regolith Breccia) - 10.2g
Slice
Enlargement --->
1000 x 805 (322 KB)
NWA 2933 (L3.3 Regolith Breccia) - 10.2g
Slice
Enlargement --->
1000 x 815 (330 KB)
NWA 2933 (L3.3 Regolith Breccia) - 10.2g
Slice (Close-up)
Enlargement --->
1000 x 750 (370 KB)
NWA 2933 (L3.3 Regolith Breccia) - 10.2g
Slice (Close-up)
Enlargement --->
1000 x 750 (416 KB)
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