The Allende meteorite is the largest carbonaceous chondrite ever found on Earth. The fireball was witnessed at 01:05 on February 8, 1969, falling over the Mexican state of Chihuahua. After breaking up in the atmosphere, an extensive search for pieces was conducted and it is often described as "the best-studied meteorite in history". The Allende meteorite is notable for possessing abundant, large calcium-aluminium-rich inclusions, which are among the oldest objects formed in the Solar System.
Carbonaceous chondrites comprise about 4 percent of all meteorites observed to fall from space. Prior to 1969, the carbonaceous chondrite class was known from a small number of uncommon meteorites such as Orgueil, which fell in France in 1864. Meteorites similar to Allende were known, but many were small and poorly studied.
Read more about Allende Meteorite: Fall, Strewnfield, Study, Structure, Composition, Subsequent Research
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... of formation of the solar system, when the parent meteorite came together ... of Technology in 1977 of new forms of the elements calcium, barium and neodymium in the meteorite was believed to show that those elements came from some source outside the early ... As further evidence, the Caltech group said the meteorite contained Aluminum 26, a rare form of aluminum ...