Chondrite - Wikipedia
A chondrite / ˈ k ɒ n d r aɪ t / is a stony (non-metallic) meteorite that has not been modified by either melting or differentiation of the parent body. [a] [1] They are formed when various types of dust and small grains in the early Solar System accreted to form primitive asteroids.
Meteorite - Chondrites, Achondrites, Iron-Nickel | Britannica
6 天之前 · Chondrites are the most abundant meteorites (about 87 percent of stony meteorites) in collections. They also are arguably the most important. In terms of terrestrial rocks, these meteorites seem akin to sedimentary conglomerate s—i.e., fragments of preexisting rock cemented together.
Chondrite | H-Group, Stony-Iron & Achondrite | Britannica
Chondrites are the most abundant meteorite class, constituting more than 85 percent of meteorite falls. Like most meteorites, chondrites originated in the asteroid belt where collisions and gravitational perturbations put them into Earth-crossing orbits.
Ordinary chondrite - Wikipedia
This chondrite has a multicolored mix of chondrules of varying size and shape. Ochansk Meteorite, an ordinary chondrite with a fusion crust, found in 1887 in Russia. The ordinary chondrites (sometimes called the O chondrites) are a class of stony chondritic meteorites. They are by far the most numerous group, comprising 87% of all finds. [1]
Meteorite - Achondrite, Chondrite, Stony | Britannica
6 天之前 · This meteorite contains trapped gases (noble gases, nitrogen, and carbon dioxide) whose relative abundances and isotopic compositions are almost identical to those of the Martian atmosphere as measured by the two Viking landers.
Types of Meteorites
Chondrites are the most common type of meteorite, with over 70,000 chondrites classified and recorded in the global meteorite collection. These are stony meteorites made of spherical blobs (chondrules) of the minerals olivine and pyroxene with varying amounts of iron-nickel metals, as well as smaller amounts of other minerals and sulfides.
Stone Meteorites: Their Origin, Classification, Pictures - Geology.com
Ordinary chondrites are the most common type of meteorite, but they are still rarer than platinum or diamonds. Chondrites take their name from the chondrules they contain - small grain-like spheres of varying sizes and colors.
Chondrite - Meteorite Museum
History: The meteorite was purchased from a meteorite dealer in Morocco. Physical characteristics: Many dark brownish fragments without fusion crust. Petrography: Chondrite composed of chondritic portions surrounded by abundant finely recrystallized metal-rich melt rock veins and pockets.
Chondrites – Buseck Center for Meteorite Studies
The chondrites take their name from chondrules, the nearly spherical, silicate-rich particles they contain. They are the most abundant type of stony meteorite, and contain some of the first objects to have formed in the Solar System, including calcium …
Chondrite - an overview | ScienceDirect Topics
Chondrites are meteorites that provide the best clues to the origin of the solar system. They are the oldest known rocks—their components formed during the birth of the solar system ca. 4,567 Ma—and their abundances of nonvolatile elements are close to those in the solar photosphere.