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The 60-tonne, 2.7 m-long (8.9 ft) Hoba meteorite in Namibia is the largest known intact meteorite.[1]A meteorite is a rock that originated in outer space and has fallen to the surface of a planet or moon.
The meteorite was acquired by the Geological Survey of Canada, [8] and a large sample of it is on display at the Royal Ontario Museum. The largest known E-type chondrite in the asteroid belt may be 21 Lutetia , with a diameter of approximately 100 kilometres (62 mi), [ 9 ] based on observations from the Rosetta spacecraft, ESO's New Technology ...
A chondrite / ˈ k ɒ n d r aɪ t / is a stony (non-metallic) meteorite that has not been modified by either melting or differentiation of the parent body. [a] [1] They are formed when various types of dust and small grains in the early Solar System accreted to form primitive asteroids.
Stony-iron meteorites or siderolites are meteorites that consist of nearly equal parts of meteoric iron and silicates. This distinguishes them from the stony meteorites, that are mostly silicates, and the iron meteorites, that are mostly meteoric iron. [1] Stony-iron meteorites are all differentiated, meaning that they show signs of alteration.
This is a list of largest meteorites on Earth. Size can be assessed by the largest fragment of a given meteorite or the total amount of material coming from the same meteorite fall: often a single meteoroid during atmospheric entry tends to fragment into more pieces. The table lists the largest meteorites found on the Earth's surface.
A meteorite is a portion of a meteoroid or asteroid that survives its passage through the atmosphere and hits the ground without being destroyed. [77] Meteorites are sometimes, but not always, found in association with hypervelocity impact craters; during energetic collisions, the entire impactor may be vaporized, leaving no meteorites.
Meteorite shock stage is a measure of the degree of fracturing of the matrix of a common chondrite meteorite. [1] Impacts on the parent body of a meteoroid can produce very large pressures. These pressures heat, melt and deform the rocks.
Gas-rich meteorites are meteorites with high levels of primordial gases, such as helium, neon, argon, krypton, xenon and sometimes other elements. [1] Though these gases are present "in virtually all meteorites," [ 2 ] the Fayetteville meteorite has ~2,000,000 x10 −8 cc STP / g helium, [ 3 ] or ~2% helium by volume equivalent.