HED meteorites

HED meteorites

A group of stony (achondrite) meteorites, named after the three types: howardites, eucrites, and diogenites. They are igneous rocks that are about 4.5 billion years old.
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Evidence for dark material is also found in the HED meteorites that come from Vesta.
The link between dark material on Vesta and dark clasts in HED meteorites provides us with direct evidence that these meteorites are indeed from Vesta.
This crater may be the source of the HED meteorites and a population of smaller nearby inner-main-belt asteroids with similar spectra that are often referred to as Vestoids.
In the case of Vesta, thanks to the HED meteorites, we have the samples first, and must try to relate them to our emerging geologic picture of Vesta from the Dawn mission," added Williams.