An achondrite[1] is a stony meteorite that does not contain chondrules. [2][3] It consists of material similar to terrestrial basalts or plutonic rocks and has been differentiated and reprocessed to a lesser or greater degree due to melting and recrystallization on or within meteorite parent bodies. [4][5] As a result, achondrites have distinct ...

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Nakhla is a martian achondrite that fell June 28th, 1911, in Al Buhayrah, Egypt. At the time of the fall, a newspaper article was published claiming the meteorite had hit a dog on entry. This was never proven, but did inspire a Peanuts cartoon strip, in which Linus and Charlie Brown discuss the meteorite striking […] Read More…

Nakhla is a martian achondrite that fell June 28th, 1911, in Al Buhayrah, Egypt. At the time of the fall, a newspaper article was published claiming the meteorite had hit a dog on entry. This was never proven, but did inspire a Peanuts cartoon strip, in which Linus and Charlie Brown discuss the meteorite striking a dog, to Snoopy’s dismay.

Stony Meteorites: Achondrites There are no beautiful chondrules with sharp edges here. These are the meteorites that either have been melted until their chondrules are completely gone, or they formed on larger worlds where no tiny round drop of mineral could form. Many resemble rocks from the Earth but with different chemistry.

This video shows stony meteorites "Achondrite" it's classifications and it's samples.This video is for educational purposes only. Photos used are not mine an...

Achondrites lack chondrules, originate on differentiated planetary bodies (ie planetary bodies with a distinct core and crust), such as asteroids, planets, or moons, and were reformed from molten fragments that were flung into space as the result of another collision.

History: The stone was found by meteorite hunters in Western Sahara. Physical characteristics: Smooth sand blasted exterior and saw-cut, exposed interior show a cumulate intermingling of cream-colored plagioclase grains and vivid-green pyroxene grains.

2025年1月18日 · Most achondrites collected on Earth are derived from asteroids, but one small group is thought to come from Mars and another from the Moon. The three most numerous asteroidal achondrite groups are the aubrites, the howardite-eucrite-diogenite association, and the ureilites. Aubrites are also known as enstatite achondrites.

Achondrite, any stony meteorite containing no chondrules (small, roughly spherical objects that formed in the solar nebula). The only exclusions are carbonaceous chondrites of the CI group, which, though they are clearly chondrites, are so heavily …