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The Allende meteorite is the largest carbonaceous chondrite ever found on Earth. The fireball was witnessed at 01:05 on February 8, 1969, falling over the Mexican state of Chihuahua . [ 1 ] After it broke up in the atmosphere , an extensive search for pieces was conducted and over 2 tonnes (2.2 tons) were recovered.
Hexamolybdenum is a molybdenum dominant alloy discovered during a nanomineralogy investigation of the Allende meteorite. [4] Hexamolybdenum was discovered in a small ultrarefractory inclusion within the Allende meteorite. [4] This inclusion has been named ACM-1. [4] Hexamolybdenum is hexagonal, with a calculated density of 11.90 g/cm 3. [4]
Allendeite was discovered in a small ultrarefractory inclusion within the Allende meteorite. [2] This inclusion has been named ACM-1. [2] It is one of several scandium rich minerals that have been found in meteorites. [2] Allendeite is trigonal, with a calculated density of 4.84 g/cm 3. [2] The new mineral was found along with hexamolybdenum. [2]
Eight years ago, CNEOS 2014-01-08 tore through Earth’s atmosphere at over 100,000 miles per hour.
Some carbonaceous chondrites, such as the Allende meteorite, contain calcium-aluminum-rich inclusions (CAIs). These are compounds that emerged early from the primeval solar nebula , condensed out and represent the oldest minerals formed in the Solar System .
Chondrite meteorite with calcium–aluminium-rich inclusions seen as white specks. A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites.
Panguite is a type of titanium oxide mineral first discovered as an inclusion within the Allende meteorite, and first described in 2012. [4] [5]The hitherto unknown meteorite mineral was named for the ancient Chinese god Pan Gu, the creator of the world through the separation of yin (earth) from yang (sky).
Extinct isotopes of superheavy elements are isotopes of superheavy elements whose half-lives were too short to have lasted through the formation of the Solar System, [1] and because they are not replenished by natural processes, can nowadays only be found as their decay products (from alpha decay, cluster decay or spontaneous fission) trapped within sediment and meteorite samples dating ...