Iron Meteorite
This iron was found at Derrick Peak, Antarctica. This type of meteorite gets its name because it is mostly made of the elements iron and nickel. This sample is probably a small piece from the core of a large that broke apart.
A large boulder spied by the Mars Exploration Rover in July has been confirmed as the largest iron meteorite found on Mars to date.
Iron Meteorite
Carbonaceous Chondrite
The stony meteorites (chondrites) are the most common, iron meteorites are composed largely of iron and nickel, ...
IRON METEORITE - Meteorite composed mainly of iron (Fe) and nickel (Ni) in the form of two alloys, kamacite and taenite. Due to their metallic makeup and extraordinary weight, iron meteorites are easily distinguished from ordinary rocks.
Iron Meteorite: Iron meteorites are made, almost completely, of nickel-iron metal. They are chemically distinguished and grouped according to the abundances of the trace elements such as gallium and germanium, as well as nickel.
Iron Meteorite
a meteorite which is composed mainly of iron mixed with smaller amounts of nickel.
Irregular Galaxy
a galaxy with no spiral structure and no symmetric shape. Irregular galaxies are usually filamentary or very clumpy in shape.
iron meteorite: A meteorite composed mainly of iron-nickel alloy.
irregular galaxy: A galaxy with a chaotic appearance, large clouds of gas and dust, and both population I and II stars, but without spiral arms.
Iron Meteorite - A meteorite composed primarily of iron and nickel
Irregular Cluster - A cluster of galaxies that lacks a symmetrical shape and structure
Irregular Galaxy - A galaxy having an amorphous shape and lacking symmetry ...
Iron meteorites (5.7%)
Meteorites have proven difficult to classify, but the three broadest groupings are stony, stony iron, and iron. The most common meteorites are chondrites, which are stony meteorites.
Iron meteorites
Stony iron meteorites
Association of meteorites with asteroids
The ages of meteorites and their components
Cosmic-ray exposure ages of meteorites
Meteorites and the formation of the early solar system
Additional Reading ...
IRON METEORITE
An iron meteorite is a meteor made of the metal iron that has fallen to Earth.
An iron meteorite (courtesy of the Planetary Data Center). The primitive meteorites are probably the most important ones because they hold clues to the composition and temperature in various parts of the early solar nebula.
Finding Meteorites ...
An iron meteorite discovered in Antarctica. Irons look very different to normal rocks which aids in their discovery.
Credit: NASA/JPL ...
An iron meteorite is a meteor made of the metal iron that has fallen to Earth.
In iron meteorites, groups of very fine parallel lines that cross each other at various angles. Irons containing Neumann lines can easily be cleaved in three mutually perpendicular directions.
Neutral Current ...
Stony-iron meteorites constitute the remaining 1%. They are a mixture of iron-nickel metal and silicate minerals. One type, called pallasites, is thought to have originated in the boundary zone above the core regions where iron meteorites originated.
A stony iron meteorite. Siderolites comprise less than 2 percent of known falls. (lit.: "sky stone")[H76]
Siemens (S)
The SI unit of electrical conduction (reciprocal ohm). [H76]
Sigma ...
A rare variety of iron meteorite (designated type D) made almost entirely of taenite, a solid solution of iron and 27% to 65% nickel; ...
K- and S-class asteroids have moderate albedos and spectral reflectances similar to the stony-iron meteorites, and they are known to contain significant amounts of silicates and metals, including the minerals olivine and pyroxene on their surfaces.
The Hoba iron meteorite is the largest single meteorite known. Its present weight is estimated at 66 tons. Part of the Hoba meteorite has rusted away, therefore it's original weight may have been as much as 100 tons! ...
Asteroids of the S type, related to the stony iron meteorites, make up about 15 percent of the total population. Much rarer are the M-type objects, corresponding in composition to the meteorites known as "irons".
They are of different types, Stony meteorites, iron meteorites and the rare carbonaceous chondrites.
The best documented close-call was experienced by three children in Braunau in Bohemia in 1847, when a 17-kilogram iron meteorite fell into the room in which they were sleeping, covering them with debris.
In the case of iron meteorites, there are characteristic patterns in the metal that can be seen - Widmanstatten Figures. They are produced by the heating and cooling of the metal. They are very distinctive and not found in Earth rocks or metals.
Mars Exploration Rover Opportunity Finds Iron Meteorite on Mars
(Added 01/29/05) NASA's Mars Exploration Rover Opportunity has found an iron meteorite, the first meteorite of any type ever identified on another planet.
In the'50s A swarm of iron meteorites impact to states in the Northeast USA; It was pallasiti, or beautiful Aeroliti metal that hard crystalline nuclei, ...
(b) Iron meteorites, much rarer than stony ones, usually contain some nickel as well. Most such meteorites show characteristic crystalline patterns when their surfaces are cut, polished, and etched with weak acid.
The closest town was Annaheim, Saskatchewan, which also was near the site where an iron meteorite fell in 1914. The two meteorites were found only nine miles apart.
A Dictionary of Earth Sciences entry for meteorites
A Dictionary of Earth Sciences entry for iron meteorite
A Dictionary of Earth Sciences entry for Antarctic meteorites
The Oxford Companion to the Earth entry for meteorites ...
the solar magnetic field as it passed by Ida (a similar effect was found at Gaspra). This indicates the Ida must contain some magnetic material, though its density is far too low for it to be similar in composition to an iron or stony-iron meteorite.
 See also: Meteorite, Meteor, Earth, Solar, Metal
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