What are the three types of asteroids?

Answer 1

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

Answer 2

The 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.

Answer 3

Meteorites 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.

Answer 4

Meteor-in earth's atmosphere

meteoroid- in the solar system

asteroid-bigger than a meteoroid but smaller than a planet

Answer 5

Three Types of Meteorites:

1.Irons

2.Stones

3.Stony-Irons

Answer 6

Stones, irons, stony-irons.

Answer 7

Stony, Metallic, and Carbonation.

Answer 8

Iron, stony and iron stony.

Answer 9

stony, stony iron and iron

Answer 10

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