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Gebel Kamil (meteorite)
Gebel Kamil is a meteorite that struck Egypt later than 3000 BC, leaving a crater surrounded by thousands of pieces of iron shrapnel with a total weight of about . History In February 2009 and 2010, meteorite fragments with masses ranging from < to , plus an specimen, were found in and around a radius from by an Italian-Egyptian geophysical team. About was recovered. The geophysical survey took place as part of the "2009 Italian-Egyptian Year of Science and Technology". Mineralogy '' ''
The Gebel Kamil meteorite contains the minerals
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Meteoritical Society
The Meteoritical Society is a non-profit scholarly organization founded in 1933 to promote research and education in planetary science with emphasis on studies of meteorites and other extraterrestrial materials that further our understanding of the origin and history of the Solar System. Members The membership of the society comprises over 1,000 scientists and amateur enthusiasts from over 52 countries who are interested in a wide range of planetary science topics. Members interests include meteorites, cosmic dust, asteroids and comets, natural satellites, planets, impact events, and the origins of the Solar System. Activities The Meteoritical Society is the organization that records all known meteorites in its '' Meteoritical Bulletin''. The Society also publishes one of the world's leading planetary science journals, ''Meteoritics & Planetary Science'', and is a cosponsor with the Geochemical Society of the renowned journal ''Geochimica et Cosmochimica Acta''. The Society presen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ataxite
Ataxites (from Greek meaning "without structure") are a structural class of iron meteorites with a high nickel content and show no Widmanstätten patterns upon etching. Characteristics Ataxites are composed mainly of meteoric iron, a native metal found in meteorites that consists of the mineral taenite with minor amounts of plessite, troilite, and microscopic lamellae of kamacite. Ataxites are the most nickel-rich meteorites known; they usually contain over 18% nickel. The high nickel content is the reason that they do not develop a Widmanstätten structure, because in this case kamacite can be exsolved from taenite only at such a low temperature (below about 600°C) where diffusion is already too slow.F. Heide, F. Wlotzka, Meteorites, Messengers from Space, Springer-Verlag 1995, page 143 Classification Most ataxites belong to the[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egypt
Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediterranean Sea to the north, the Gaza Strip of Palestine and Israel to the northeast, the Red Sea to the east, Sudan to the south, and Libya to the west. The Gulf of Aqaba in the northeast separates Egypt from Jordan and Saudi Arabia. Cairo is the capital and largest city of Egypt, while Alexandria, the second-largest city, is an important industrial and tourist hub at the Mediterranean coast. At approximately 100 million inhabitants, Egypt is the 14th-most populated country in the world. Egypt has one of the longest histories of any country, tracing its heritage along the Nile Delta back to the 6th–4th millennia BCE. Considered a cradle of civilisation, Ancient Egypt saw some of the earliest developments of writing, agriculture, ur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schreibersite
Schreibersite is generally a rare iron nickel phosphide mineral, , though common in iron-nickel meteorites. It has been found on Disko Island in Greenland and Illinois. Another name used for the mineral is rhabdite. It forms tetragonal crystals with perfect 001 cleavage. Its color ranges from bronze to brass yellow to silver white. It has a density of 7.5 and a hardness of 6.5 – 7. It is opaque with a metallic luster and a dark gray streak. It was named after the Austrian scientist Carl Franz Anton Ritter von Schreibers (1775–1852), who was one of the first to describe it from iron meteorites.Schreibersite Webmineral Schreibersite is reported from the Magura Meteorite, Arva-(present name – Orava), Slovak Republic; the |
Kamacite
Kamacite is an alloy of iron and nickel, which is found on Earth only in meteorites. According to the International Mineralogical Association (IMA) it is considered a proper nickel-rich variety of the mineral native iron. The proportion iron:nickel is between 90%:10% and 95%:5%; small quantities of other elements, such as cobalt or carbon may also be present. The mineral has a metallic luster, is gray and has no clear cleavage although its crystal structure is isometric-hexoctahedral. Its density is about 8 g/cm3 and its hardness is 4 on the Mohs scale. It is also sometimes called balkeneisen. The name was coined in 1861 and is derived from the Greek root ''καμακ-'' "kamak" or ''κάμαξ'' "kamaks", meaning vine-pole. It is a major constituent of iron meteorites (octahedrite and hexahedrite types). In the octahedrites it is found in bands interleaving with taenite forming Widmanstätten patterns. In hexahedrites, fine parallel lines called Neumann lines are often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kamil Crater
The Kamil Crater is a wide and deep (original depth, a part covered by sand at present) meteorite impact crater in the East Uweinat Desert in southwestern New Valley Governorate, Egypt, Only north of the border with the Sudan and above sea level. It was located in 2008 using Google Earth satellite imagery by Vincenzo de Michele (former curator of the Museo Civico di Storia Naturale di Milan in Milan, Italy). Studies The first geophysical study of the Kamil Crater was conducted during an Italian-Egyptian expedition undertaken in February 2010 as part of the 2009 Egyptian-Italian Science Year (EISY) and proved the meteoritic origin of the crater. It is estimated to be less than 5,000 years old and shows a well-preserved rayed structure. The crater was produced by an iron meteorite that has been given an official name after the closest topographic feature in the area, Gebel Kamil, and which fragmented into thousands of pieces upon impact with the sandstone bedrock. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gebel Kamil Meteorite 60gm
Gebel may refer to: Places * Gebel Edmonstone, a flat-topped mesa * Gebel Elba, a peak in Egypt * Gebel el-Haridi, an archaeological site in Egypt * Gebel el-Silsila, an archaeological quarry site in Egypt * Gebel Ramlah, an archaeological site in Egypt * Ġebel San Pietru, a hill in Malta * Gebel Tingar, small mountain in Egypt * Gebel-al-Tarik (Mountain of Tarik), the Arabic name for Gibraltar * Tuna el-Gebel, the necropolis of Khmun Other * Gebel (surname), Turkish and German surname * Gebel el-Arak Knife, an ivory and flint knife * Gebel Kamil (meteorite) Gebel may refer to: Places * Gebel Edmonstone, a flat-topped mesa * Gebel Elba, a peak in Egypt * Gebel el-Haridi, an archaeological site in Egypt * Gebel el-Silsila, an archaeological quarry site in Egypt * Gebel Ramlah, an archaeological site i ... * Gebel, a fictional character in '' Bloodstained: Ritual of the Night'' and its companion game ''Bloodstained: Curse of the Moon'' See also * Jabal (disambiguatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ataxite
Ataxites (from Greek meaning "without structure") are a structural class of iron meteorites with a high nickel content and show no Widmanstätten patterns upon etching. Characteristics Ataxites are composed mainly of meteoric iron, a native metal found in meteorites that consists of the mineral taenite with minor amounts of plessite, troilite, and microscopic lamellae of kamacite. Ataxites are the most nickel-rich meteorites known; they usually contain over 18% nickel. The high nickel content is the reason that they do not develop a Widmanstätten structure, because in this case kamacite can be exsolved from taenite only at such a low temperature (below about 600°C) where diffusion is already too slow.F. Heide, F. Wlotzka, Meteorites, Messengers from Space, Springer-Verlag 1995, page 143 Classification Most ataxites belong to the[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2008 TC3
(Catalina Sky Survey temporary designation 8TA9D69) was an , diameter asteroid that entered Earth's atmosphere on October 7, 2008. It exploded at an estimated above the Nubian Desert in Sudan. Some 600 meteorites, weighing a total of , were recovered; many of these belonged to a rare type known as ureilites, which contain, among other minerals, nanodiamonds. It was the first time that an asteroid impact had been predicted before its entry into the atmosphere as a meteor. Discovery The asteroid was discovered by Richard A. Kowalski at the Catalina Sky Survey (CSS) 1.5-meter telescope at Mount Lemmon, north of Tucson, Arizona, US, on October 6, 06:39 UTC, 19 hours before the impact. It was notable as the first such body to be observed and tracked prior to reaching Earth. The process of detecting and tracking a near-Earth object, an effort sometimes referred to as Spaceguard, was put to the test. In total, 586 astrometric and almost as many photometric observations w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Meteoritics
This is a glossary of terms used in meteoritics, the science of meteorites. # * 2 Pallas – an asteroid from the asteroid belt and one of the likely parent bodies of the CR meteorites. * 4 Vesta – second-largest asteroid in the asteroid belt and likely source of the HED meteorites. * 221 Eos – an asteroid from the asteroid belt and one of the likely parent bodies of the CO meteorites. * 289 Nenetta – an asteroid from the asteroid belt and one of the likely parent bodies of the angrites. * 3103 Eger – an asteroid from the asteroid belt and one of the likely parent bodies of the aubrites. * 3819 Robinson – an asteroid from the asteroid belt and one of the likely parent bodies of the angrites. * IA meteorite – an iron meteorite group now part of the IAB group/complex. * IAB meteorite – an iron meteorite and primitive achondrite of the IAB group/complex. * IB meteorite – an iron meteorite group now part of the IAB group/complex. * IC meteorite – an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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