page_title: Ordinary chondrite
hierarchical_section_title: Ordinary chondrite
caption_attribution_description: Ordinary chondrite (field of view ~2.2 cm across) - NWA 3189 Meteorite, found in northwestern Africa. This has been classified as an LL3.2-3.4 ordinary chondrite (“LL” means very low total iron content; “3” refers to well-preserved chondrules - the rock has not been subjected to metamorphism intense enough to disrupt the chondritic texture). This chondrite has a nice, multicolored mix of chondrules of varying size and shape. Not all chondrites have obvious chondrules as this specimen does. Chondrites subjected to significant thermal metamorphism some time in their history have chondrules that are partially to almost completely recrystallized.
context_page_description: The ordinary chondrites are a class of stony chondritic meteorites. They are by far the most numerous group and comprise about 87% of all finds. Hence, they have been dubbed "ordinary". The ordinary chondrites are thought to have originated from three parent asteroids, with the fragments making up the H chondrite, L chondrite and LL chondrite groups respectively.
context_section_description: The ordinary chondrites (sometimes called the O chondrites) are a class of stony chondritic meteorites. They are by far the most numerous group and comprise about 87% of all finds. Hence, they have been dubbed "ordinary". The ordinary chondrites are thought to have originated from three parent asteroids, with the fragments making up the H chondrite, L chondrite and LL chondrite groups respectively.
caption: Ordinary chondrite NWA 3189 sliced. Field of view c. 2.2 cm across. NWA 3189 has been classified as an LL3.2–3.4 ordinary chondrite ("LL" means very low total iron content; "3" refers to well-preserved chondrules – the rock has not been subjected to metamorphism intense enough to disrupt the chondritic texture). This chondrite has a multicolored mix of chondrules of varying size and shape.
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