page_title: Moss meteorite
section_title: Classification and scientific studies
hierarchical_section_title: Moss meteorite / Classification and scientific studies
caption_attribution_description: On July 14, 2006 at 10:25, a fireball lit up the sky over Moss and Rygge in southern Norway. The fireball was followed by rumbling sounds and an explosion. Afterwards a meteorite was heard hitting a piece of sheet metal. The meteorite recovered from this event was a relatively rare CO3.5/3.6 carbonaceous chondrite and it was named Moss. Despite extensive searches, only 5 stones were found with a total combined weight of 3.76 kgs. This beautiful partial slice has crust along one edge. 0.588 g.
context_page_description: Moss is a carbonaceous chondrite meteorite that fell over the communities of Rygge and Moss in Østfold county, southeast southern Norway in the morning of midsummer day, July 14, 2006.
  The last time a type CO3 meteorite fell from the sky was in 1937 with Kainsaz, Russia. There are 6 known falls of a CO3 meteorite. Being of the rare carbonaceous subtype, 'meteorite man' Robert Haag stated to the media that this was the most important meteorite fall since the Canadian Tagish Lake fall in January 2000.
context_section_description: Several scientific papers have come out on the closer study of the meteorite. The first preliminary study of August 2006 showed that it contains numerous small chondrules, most <0.2mm and small <1mm amoeboid olivine aggregates (AOAs) and small CAIs (calcium aluminium inclusions). It also contains isolated grains of olivine, troilite and kamacite in a gray matrix.
  It has been classified as carbonaceous chondrite of type CO3 - Ornans type. Its accepted designation is CO3.6. Its petrologic type 3.6 means that it is only slightly metamorphosed by heating from its original state, but more so than most of the 5 other CO3 falls. Its closest kin of these falls is Ornans, the group type specimen. It contains only about 0.25 percent carbon, some present as organic compounds. Typically benzene, toluene, C2-alkyl benzene and traces of biphenyl, benzonitrile and aliphatic hydrocarbones.
  The shock stage is S2.
caption: Moss slice
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