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A meteoroid which reaches the ground is called a meteorite. A small number of meteorites have been found which scientists believe originated on the Moon or Mars. The composition of meteorites gives us valuable information about the universe. Meteorites typically fall into one of five categories.
Irons
These meteorites are made of a crystalline iron-nickel alloy that resembles the outer core of the earth. Similar in structure to some asteroids (type M), 5.7% of meteorites are irons.
Stony-Irons
These meteorites are mixtures of iron-nickel alloy and non-metallic mineral matter. Scientists believe they are like the material which would be found where the Earth's core meets the mantle. 1.5% of meteorite falls are stony irons.
Stony Meteorites
There are three subclasses of stony meteorites:
Chondrites: These meteorites are the most numerous, comprising 85.7% of all meteorites found. They are characterized by chondrules: small (average diameter of 1 millimeter) spheres of formerly melted minerals that have melded with other minerals to form a solid rock. Chondrites are believed to be among the oldest rocks in the solar system and are similar in composition to the mantles and crusts of earth and the other terrestrial planets.
Carbonaceous Chondrites: These meteorites are very rare and contain elemental carbon, the basic building block for life on earth.
Achondrites: Stony meteorites without chondrules, representing about 7.1% of meteorites. Scientists believe that some of these meteorites originate on the surface of the Moon or Mars.
From http://www.odec.ca/projects/2006/jauc6s2/kinds.htm
Wiki User
∙ 15y ago
The three types of asteroids are C-type (carbonaceous), S-type (silicaceous), and M-type (metallic). C-type asteroids are composed of carbon compounds and are the most common type. S-type asteroids are rocky and silicate-rich. M-type asteroids are metallic and consist mainly of nickel and iron.
Wiki User
∙ 6y agoThe classification of meteorites is complex but at a high level they can be divided into Stony meteorites and Stony-iron meteorites.
Meteorites are fragments of Asteroids and or comets.
Wiki User
∙ 11y agoMeteorites are divided into three main groups:
1. Iron meteorites - these are almost entirely composed of iron-nickel metal, and usually have small amounts of sulphide and carbide minerals.
2. Stony-iron meteorites - these are made up of equal amounts of iron-nickel metal and silicate minerals.
3. Stone meteorites - these consist mainly of silicate minerals. Most of the meteorites that fall onto the earth of this type.
Wiki User
∙ 15y agoMeteor-in earth's atmosphere
meteoroid- in the solar system
asteroid-bigger than a meteoroid but smaller than a planet
Wiki User
∙ 11y agoThree Types of Meteorites:
1.Irons
2.Stones
3.Stony-Irons
Wiki User
∙ 11y agoStones, irons, stony-irons.
Wiki User
∙ 14y agoStony, Metallic, and Carbonation.
Wiki User
∙ 11y agoIron, stony and iron stony.
Wiki User
∙ 12y agostony, stony iron and iron
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What are the types of asteroids?
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What are three types of bodies in the solar system besides dwarf planets asteroids and planets?
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What are the three types of small bodies in your solar system?
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What are the three minor planets called?
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What are the three different types of asteroids?
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How many basic groups are asteroids categorized in?
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