Consequently, these meteorites all have high concentrations of aluminum and calcium.Because of some unique aspects about how the Moon formed, the lunar highlands are composed predominantly of anorthite.
S., they would likely all been given the same name.
For several reasons, we know that the lunar meteorites derive from many different impacts on the Moon.
We can often tell that they came from space, however, because many lunar meteorites have fusion crusts (the olive-green crust on the photo above) from the melting of the exterior that occurs during their passage through Earth's atmosphere.
On meteorites found in hot deserts, the fusion crusts sometimes have weathered away.
is a rock that was formed elsewhere in the Solar System, was orbiting the sun or a planet for a long time, was eventually captured by Earth's gravitational field, and fell to Earth as a solid object.
A is the visible streak of light that occurs as the rock passes through the atmosphere and exterior of the rock is heated to incandescence. A few rare meteorites come from the Moon (0.1%) and Mars (0.1%).Lunar meteorites, or lunaites, are meteorites from the Moon.In other words, they are rocks found on Earth that were ejected from the Moon by the impact of an asteroidal meteoroid or possibly a comet. Lunar escape velocity averages 2.38 km/s (1.48 miles per second), only a few times the muzzle velocity of a rifle (0.7-1.0 km/s).Pairing has not yet been established or rejected for the many recently found meteorites, so the actual number is not known with certainty.In the List, known or strongly suspected paired stones are listed on a single line separated by slashes.Taken together, these various characteristics are different from those of any type of terrestrial rock or other type of meteorite.