Howardite
Sign in to saveHowardites are achondritic stony meteorites that originate from the surface of the asteroid 4 Vesta, and as such are part of the HED meteorite clan. There are about 200 distinct members known.
Key facts
- Meteorite subdivision.Subdivision
- Group
- Meteorite subdivision.Name
- Howardite
- Meteorite subdivision.Image
- Howardite QUE94200.gif
- Meteorite subdivision.Image_caption
- QUE94200, a Howardite about across, found in the Queen Alexandra Range in Antarctica.
- Meteorite subdivision.Compositional_type
- Stony
- Meteorite subdivision.Type
- Achondrite
- Meteorite subdivision.Class
- Asteroidal achondrite
- Meteorite subdivision.Clan
- HED meteorite <!-- list/link all subgroups of this group as a
- Meteorite subdivision.Subgroups
- -->
- Meteorite subdivision.Parent_body
- 4 Vesta
- Meteorite subdivision.Number_of_specimens
- ~200
via Wikipedia infobox
Wikidata facts
- Image
- NWA 5489 howardite meteorite.jpg
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- Commons category
- Howardites
Sources (1)
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Article
5 sectionsContents
- Characteristics
- Name
- See also
- References
- External links
Howardites are achondritic stony meteorites that originate from the surface of the asteroid 4 Vesta, and as such are part of the HED meteorite clan. There are about 200 distinct members known.
==Characteristics== They are a regolith breccia consisting mostly of eucrite and diogenite fragments, although carbonaceous chondrules and impact melt can also occur. The rock formed from impact ejecta which was later buried by newer impacts and lithified due to the pressure from overlying layers. Regolith breccias are not found on Earth due to a lack of regolith on bodies which have an atmosphere.