Field Museum team completed naming and classification of meteorite that fell in Michigan in January.

Sat, 03/03/2018 - 15:43 -- pheck

The Field’s team consisting of University of Chicago graduate student Jennika Greer and Robert A. Pritzker Associate Curator Philipp Heck used scanning electron microscopy with X-ray spectroscopy and Raman spectroscopy to classify the rock as a very weakly shocked H4 chondrite. Out of about 60,000 confirmed meteorites, only about 0.1 percent are H4 chondrite falls. The meteorite is now officially named after Hamburg, Michigan. The classification and name has been reviewed and approved by the Nomenclature Committee of the Meteoritical Society and is now published in the Meteoritical Bulletin Database.

This olivine-rich chondrule is shown in a false color composite X-ray map (R=Mg; G=Ca; B=Al).