Purchased October 2007
no coordinates recorded A single weathered (W3) meteorite weighing 1,276 g was found in Algeria and sold to a meteorite dealer in Erfoud, Morocco. Analysis and classification of the stone was conducted at Northern Arizona University (T. Bunch and J. Wittke), and it was determined that NWA 5206 is a very weakly shocked (S2), terrestrially weathered (W3), highly unequilibrated LL3.05 (or possibly lower) chondrite.
Diagram credit: Pape et al., GCA, vol. 244, p. 429 (2019)
‘Time and duration of chondrule formation: Constraints from 26Al-26Mg ages of individual chondrules’
(https://doi.org/10.1016/j.gca.2018.10.017) Very few ordinary chondrites have been classified as petrologic subtype 3.05 or lower, and NWA 5206 is the only LL chondrite designated as such. A comprehensive pictorial review of NWA 5206 can be found on the Meteorites Australia page showing examples of the many chondrule types and exotic components such as metallic chondrules armored with troilite, xenolithic chondrule fields, and dark inclusions. The specimen of NWA 5206 shown above is a 7.47 g partial slice. The photo below shows a view of the main mass, courtesy of M. Cimala.
Photo courtesy of Marcin Cimala—Polish Meteorite Laboratory