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.Ochansk Meteorite, an ordinary chondrite with a fusion crust, found in 1887 in Russia.
The ordinary chondrites (sometimes called the O chondrites) are a class of stony chondritic meteorites. They are by far the most numerous group, comprising 87% of all finds.[1] 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.[2]
^Grady, Monica (2022). "Meteorites". The Catalogue of Meteorites. Natural History Museum. doi:10.5519/tqfuwle7. Retrieved 28 May 2020.
^ David Kring (21 November 2013). "Asteroid Initiative Workshop Cosmic Explorations Speakers Session". NASA (via YouTube). Retrieved 16 February 2019.
and 25 Related for: Ordinary chondrite information
The ordinarychondrites (sometimes called the O chondrites) are a class of stony chondritic meteorites. They are by far the most numerous group, comprising...
A chondrite /ˈkɒndraɪt/ is a stony (non-metallic) meteorite that has not been modified, by either melting or differentiation of the parent body. They...
LL chondrites are a group of stony meteorites, the least abundant group of the ordinarychondrites, accounting for about 10–11% of observed ordinary-chondrite...
ordinary chondrites. The ordinarychondrites are thought to have originated from three parent asteroids, with the fragments making up the H chondrite, L chondrite...
chondrites. The ordinarychondrites are thought to have originated from three parent asteroids, whose fragments make up the H chondrite, L chondrite and...
'carbonaceous chondrite' class of meteorites, though all are rarer in collections than ordinarychondrites. Meteorites mostly divide into Ordinary and 'Carbonaceous'...
maintained that comets best explained carbonaceous chondrite meteorites or even ordinarychondrites. The issue of asteroids versus comets reemerged with...
Evidence from NEAR Shoemaker's x-ray measurements of Eros indicate an ordinarychondrite composition despite a red-sloped, S-type spectrum, again suggesting...
desertic samples. The most commonly employed weathering scale, used for ordinarychondrites, ranges from W0 (pristine state) to W6 (heavy alteration). "Fossil"...
from the flyby pointed to S-type asteroids as the source for the ordinarychondrite meteorites, the most common type found on the Earth's surface. Ida...
properties somewhere between an ordinarychondrite and a carbonaceous chondrite.[citation needed] Typical carbonaceous chondrite substance tends to be dissolved...
common structural class of iron meteorites. Ordinarychondrite – a chondrite meteorite, where 'ordinary' means that it is the most common found PAC –...
especially interesting is this has been shown to account for all of the ordinarychondrites magnetic field which has been shown to be as strong as 0.4 oersted...
still some meteoritic material preserved. The meteorite is an LL6 ordinarychondrite, weighing 127 kilograms (280 lb); it was described as triangular in...
Enstatite chondrites (E-type chondrites) are a rare form of meteorite, rich in the mineral enstatite. Only about 200 E-Type chondrites are currently[when...
20–24, 2001). "In-situ ion microprobe U-Pb dating of phosphates in H-chondrites" (PDF). Proceedings, Eleventh Annual V. M. Goldschmidt Conference. Hot...
(potassium, phosphorus and rare earth elements) 100–150 times compared to ordinarychondrite meteorites. These are commonly encountered around the Oceanus Procellarum...
CI chondrites which, paradoxically, do not contain any chondrules despite their designation as chondrites, whereas ordinary and enstatite chondrites contain...
impact structure, South Africa: Evidence for the impact of a large ordinarychondrite projectile at the Jurassic-Cretaceous boundary. Geochimica et Cosmochimica...
initial laboratory analysis confirmed their meteoric origin. They are ordinarychondrite meteorites and contain 10 per cent iron. The fall is officially designated...
Semarkona meteorite: First recorded occurrence of smectite in an ordinarychondrite, and its implications". Geochimica et Cosmochimica Acta. 51 (7): 1875–1882...
also reported present. Modern science records the meteorite as a L6 ordinarychondrite. The Wold Cottage meteorite was the largest meteorite observed to...
frozen lake surface. The meteorite has been classified as an LL5 ordinarychondrite. First estimates of its composition indicate about 10% of meteoric...
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