6/6/2023 0 Comments Lunar meteoriteFor iron meteorites to exist, the parent bodies from where they originate are from shattered apart and no longer exist - and most have crystallized, which is a feature that is diagnostic in the identification of an iron meteorite. Iron meteorites originate from the small molten cores of these asteroids which explains why iron meteorites are far more rare. There are two types of stony meteorites: chondrites, which are those that have not experienced undue heat and pressure and possess chondrules (spherules that condensed out of the gaseous solar nebula from which our solar system was born), and achondrites, those without chondrules, which are far less common. Some even contain impact melt breccias of different rocks. Stony meteorites represent the crust and mantle of these former protoplanets, as this is the majority of an asteroid’s volume that’s why nearly 95% of all meteorites are stony. Many of these collisions were catastrophic resulting in the total shattering of many asteroids - and thus the source of the vast majority of future meteorites. Between 19 six Apollo missions brought back 382 kilograms (842 pounds) of lunar rocks, core samples, pebbles, sand and dust from the lunar surface. Shiny, black impact-generated glass was splashed on the side. Many experienced meteorite collectors have been looking and none have yet succeeded. ![]() They undoubtedly exist, but the probability of finding a lunar meteorite in a temperate environment is incredibly low. In early solar system history repeated collisions between asteroids occurred it was a cosmic pinball gallery. Lunar Rocks and Soils from Apollo Missions A one-Kg (2.2 lbs) Apollo 16 breccia rock formed from meteorite impact. No lunar meteorite has yet been found in North America, South America, or Europe. First, there are three types of meteorites: stones, irons and stony-irons - and here’s why.
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