Chondrules in the chondrite Grassland. A millimeter scale is shown.
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Chondrules in the Carbonaceous Chondrite NWA 13887.
A chondrule (from Ancient Greek χόνδρος chondros, grain) is a round grain found in a chondrite. Chondrules form as molten or partially molten droplets in space before being accreted to their parent asteroids. Because chondrites represent one of the oldest solid materials within the Solar System[1] and are believed to be the building blocks of the planetary system, it follows that an understanding of the formation of chondrules is important to understand the initial development of the planetary system.
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A chondrule (from Ancient Greek χόνδρος chondros, grain) is a round grain found in a chondrite. Chondrules form as molten or partially molten droplets...
presence of water on Earth. One of their characteristics is the presence of chondrules (from the Ancient Greek χόνδρος chondros, grain), which are round grains...
number indicates the amount of alteration suffered by the chondrules in the meteorite. A chondrule is a small mineral ball generally 0.1–4 millimetres (0...
They show signs of metamorphism, partial melting, brecciation and relic chondrules. Their chemical and mineralogical composition lies between H and E chondrites...
olivine crystals occurring in a black matrix, and a possible lack of chondrules. It is thought they have not been heated above 50 °C (122 °F), indicating...
26 Mg chronometer, which can be used to estimate the relative ages of chondrules. 26 Al decays to 26 Mg with a half-life of 720 000 years. The dating is...
April 2022. Retrieved 9 April 2022. Boss, A. P.; Durisen, R. H. (2005). "Chondrule-forming Shock Fronts in the Solar Nebula: A Possible Unified Scenario...
An achondrite is a stony meteorite that does not contain chondrules. It consists of material similar to terrestrial basalts or plutonic rocks and has been...
named for the small, round particles they contain. These particles, or chondrules, are composed mostly of silicate minerals that appear to have been melted...
parent bodies originally formed and are characterized by the presence of chondrules), and achondrites (groups of meteorites that have a complex origin involving...
oxide content (Fa) in the silicates Glossary of meteoritics Chondrite Chondrule Grady, Monica (2022). "Meteorites". The Catalogue of Meteorites. Natural...
'chondrite' indicates that these contain (or may have contained) chondrules in a matrix. Chondrules are cooled droplets of minerals, predating the meteorites...
nebula's formation. Examples of embedded elements in cosmic dust are GEMS, chondrules, and CAIs. The arrows in the adjacent diagram show one possible path from...
Petrographic type-1 meteorites, by definition, have no fully-visible chondrules. There are very few finds of CI chondrites, five or so altogether (see...
oldest-known terrestrial impact products. The spherules resemble the glassy chondrules (rounded granules) in carbonaceous chondrites, which are found in carbon-rich...
detected. Its carbon content is 2% by weight. Containing relatively large chondrules, it is a CV3-type carbonaceous chondrite, which is relatively rare among...
stony-iron. Some stone meteoroids contain grain-like inclusions known as chondrules and are called chondrites. Stony meteoroids without these features are...
planetesimals. Achondrite – a differentiated meteorite (meaning without chondrules). Aerolite – an old term for stony meteorites. ALH – an abbreviation used...
once partly melted due to a previous collision. The metamorphism in the chondrules in the meteorite samples indicates the rock comprising the meteor had...
in the porcelain factory. Saponite is also found in the "dark rims" of chondrules in carbonaceous chondrites and seen as a sign of aqueous alteration. Europe's...
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