File:Ordinary chondrite (New Concord Meteorite) 5 (32590097697).jpg
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Summary
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Ordinary chondrite - the New Concord Meteorite from Ohio, USA. (cut slice; CMC RM 1161, Cincinnati Museum of Natural History & Science, Cincinnati, Ohio, USA) Chondrites are the most common type of meteorites that fall to Earth. Chondrite classification is moderately complicated, and considers isotopic, chemical, mineralogical, textural, metamorphic, and weathering factors. Chondrites are derived from bodies in the Asteroid Belt that never underwent differentiation. That is, the parent bodies never experienced a heating event sufficient to produce a core, mantle, and crust. All chondrites contain spherical to subspherical to somewhat irregularly shaped structures called chondrules. Chondrules are composed principally of mafic minerals (olivine and pyroxene). Chondrules are nearly the oldest materials in the entire solar system. Chondrites subjected to significant thermal metamorphism some time in their history have chondrules that are partially to almost completely recrystallized. The New Concord Meteorite is one of only thirteen confirmed meteorites ever reported from Ohio, USA. The rock impacted mid-day on 1 May 1860 in the vicinity of the eastern Ohio town of New Concord. A story that one of the fragments killed a young cow may be fictional. New Concord is an L6 chondrite (“L” meaning low total iron content; “6” refers to an intensely recrystallized chondritic rock, such that almost all of the chondrules are indiscernible). |
| Date | |
| Source | Ordinary chondrite (New Concord Meteorite) 5 |
| Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/32590097697 (archive). It was reviewed on 25 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:29, 25 October 2019 | | 2,114 × 1,791 (3.54 MB) | Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
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