Mineralogy
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| Zaisho meteorite | |
|---|---|
| Type | Stony-iron |
| Class | Pallasite |
| Group | Pallasite main group, anomalous [1] |
| Country | Japan [1] |
| Region | Shikoku |
| Coordinates | 33°42′N133°48′E / 33.700°N 133.800°E Coordinates: 33°42′N133°48′E / 33.700°N 133.800°E [1] |
| Observed fall | Yes |
| Fall date | 1898 [2] |
| TKW | 330 grams (12 oz) [1] |
Zaisho is a meteorite whose fall in Japan in February 1898 was seen by observers on the ground. [1] [2] As of 2019 [update] it remains one of only four known pallasite falls, along with Marjalahti, Mineo and Omolon. [3]
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A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon. When the original object enters the atmosphere, various factors such as friction, pressure, and chemical interactions with the atmospheric gases cause it to heat up and radiate energy. It then becomes a meteor and forms a fireball, also known as a shooting star or falling star; astronomers call the brightest examples "bolides". Once it settles on the larger body's surface, the meteor becomes a meteorite. Meteorites vary greatly in size. For geologists, a bolide is a meteorite large enough to create an impact crater.
Greensburg is a city in, and the county seat of, Kiowa County, Kansas, United States. As of the 2010 census, the city population was 777, and before the tornado, in 2000 the population was 1,544.
A meteorite classification system attempts to group similar meteorites and allows scientists to communicate with a standardized terminology when discussing them. Meteorites are classified according to a variety of characteristics, especially mineralogical, petrological, chemical, and isotopic properties.
The pallasites are a class of stony–iron meteorite.
The Big Well is a large historic water well in Greensburg, Kansas, United States. Visitors entered the well for a small fee, descending an illuminated stairway to the bottom of the well.
Imilac is a pallasite meteorite found in the Atacama Desert of Northern Chile in 1822.
Iron meteorites, also known as siderites, or ferrous meteorites, are a type of meteorites that consist overwhelmingly of an iron–nickel alloy known as meteoric iron that usually consists of two mineral phases: kamacite and taenite. Iron meteorites originate from cores of planetesimals.
The Fukang meteorite is a meteorite that was found in the mountains near Fukang, China in 2000. It is a pallasite—a type of stony–iron meteorite with olivine crystals. It is estimated to be 4.5 billion years old.
A meteorite fall, also called an observed fall, is a meteorite collected after its fall from outer space was observed by people or automated devices. Any other meteorite is called a "find". There are more than 1,100 documented falls listed in widely used databases, most of which have specimens in modern collections. As of January 2019, the Meteoritical Bulletin Database had 1,180 confirmed falls.
Brahin is a meteorite pallasite found in 1807. This is the second meteorite ever found in Russia. Sometimes it is also called Bragin or Bragim. It is quite common among collectors due to the affordable price of small partial slices.
Brenham is a pallasite meteorite found near Haviland, a small town in Kiowa County, Kansas, United States. Pallasites are a type of stony–iron meteorite that when cut and polished show yellowish olivine (peridot) crystals.
Mbozi is an ungrouped iron meteorite found in Tanzania. It is one of the world's largest meteorites, variously estimated as the fourth-largest to the eighth-largest, it is located near the city of Mbeya in Tanzania's southern highlands. The meteorite is 3 metres (9.8 ft) long, 1 metre high, and weighs an estimated 16 metric tons.
Meteorite Men is a documentary reality television series featuring meteorite hunters Geoff Notkin and Steve Arnold. The pilot episode premiered on May 10, 2009. The full first season began on January 20, 2010 on the Science Channel. The second season premiered November 2, 2010 and season three began November 28, 2011. Professors and scientists at prominent universities including UCLA, ASU, UA, Edmonton, and other institutions, including NASA's Johnson Space Center, are featured.
The Eagle Station group is a set of pallasite meteorite specimen that don't fit into any of the other defined pallasite groups. In meteorite classification five meteorites have to be found, so they can be defined as their own group. Currently only five Eagle Station type meteorites have been found, which is just enough for a separate group.
IIG meteorites are a group of iron meteorites. The group currently has six members. They are hexahedrites with large amounts of schreibersite. The meteoric iron is composed of kamacite.
The Vermillion meteorite is a pallasite (stony-iron) meteorite and one of two members of the pyroxene pallasite grouplet.
The pyroxene pallasite grouplet is a subdivision of the pallasite meteorites (stony-irons).
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.
This is a glossary of terms used in meteoritics, the science of meteorites.
Merrillite is a calcium phosphate mineral with the chemical formula Ca9NaMg(PO4)7. It is an anhydrous, sodic member of the whitlockite group.
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