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M-type asteroid
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M-type asteroids are a spectral class of asteroids which appear to contain higher concentrations of metal phases than other asteroid classes, and are widely thought to be the source of iron meteorites
Image of the M-type asteroid 21 Lutetia taken by the ESA Rosetta Spacecraft during a flyby in 2010
Image of the M-type asteroid 21 Lutetia taken by the ESA Rosetta Spacecraft during a flyby in 2010
An iron–nickel meteorite with characteristic Widmanstätten pattern.
An iron–nickel meteorite with characteristic Widmanstätten pattern.
A mesosiderite showing a mixture of metals and silicates.
A mesosiderite showing a mixture of metals and silicates.
An enstatite chondrite displaying a mix of metals and silicates (enstatite).
An enstatite chondrite displaying a mix of metals and silicates (enstatite).
Iron meteorite
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Iron meteorites, also called siderites or ferrous meteorites, are a type of meteorite consisting overwhelmingly of an iron–nickel alloy known as meteoric iron, which usually comprises two mineral phas
M-type asteroid
…which appear to contain higher concentrations of metal phases (e.g. iron-nickel) than other asteroid classes, and are widely thought to be the source of iron meteorites. Asteroids are classified as M-type based upon their generally featureless and flat to red-sloped absorption spectra in the visible to near-infrared…
Tamentit Iron Meteorite, found in 1864 in the Sahara, weighing about 500 kg (1,100 lb). On display at Vulcania park in France.
Tamentit Iron Meteorite, found in 1864 in the Sahara, weighing about 500 kg (1,100 lb). On display at Vulcania park in France.
Widmanstätten pattern as seen on an etched and polished slice of an olivine-free portion of the Seymchan meteorite. Scale unknown.
Widmanstätten pattern as seen on an etched and polished slice of an olivine-free portion of the Seymchan meteorite. Scale unknown.
The Hoba meteorite, the biggest known iron meteorite. It lies in Namibia and weighs about 60 tons.
The Hoba meteorite, the biggest known iron meteorite. It lies in Namibia and weighs about 60 tons.
The Willamette Meteorite on display at the American Museum of Natural History. It weighs about 14,500 kilograms (32,000 pounds). This is the largest m
The Willamette Meteorite on display at the American Museum of Natural History. It weighs about 14,500 kilograms (32,000 pounds). This is the largest meteorite ever found in the United States.