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Met Name

Met Type

Thin Sections

37.7 grams and roughly 102 x 69 x 2.5 mm.   L3.2

TKW 1805 grams. Fall not observed.


 

Steve writes:

NWA 2798 is a chondrule-packed stone meteorite that was purchased as three conjoining fragments by Greg Hupe at Erfoud, Morocco in 2005. No location for the find was reported.

A highly unequilibrated meteorite with a shock level of 2 and a weathering grade of 1, NWA 2798 was classified by Northern Arizona University’s J. Wittke and T. Bunch as a type L3.2 chondrite (3.2 is at the highest end of the low metamorphic stage classification range developed by Grossman and Brearley between 2004 and 2008 – a range determined in part by the variation in the distribution of chromium in ferroan olivine, which is generally not affected by terrestrial weathering). As of this writing, only 17 of the 65,380 meteorites in the MetBul share this classification, and of those, only 6 were found outside of Antarctica.

Most of its chondrules are well-defined and contrast nicely against the meteorite’s darker matrix (Photo 1). Additionally, some pieces exhibit what appear to be either black achondritic inclusions or melt pockets (a few larger examples can be seen in the unpolished back side shown in Photo 2). Some chondrules are armored (as seen in Photo 3’s complex 17 x 12 mm example).