Acapulcoite
Group of the primitive achondrite class of meteorites
title: "Acapulcoite" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["achondrite-meteorites"] description: "Group of the primitive achondrite class of meteorites" topic_path: "general/achondrite-meteorites" source: "https://en.wikipedia.org/wiki/Acapulcoite" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Group of the primitive achondrite class of meteorites ::
::data[format=table title="infobox meteorite subdivision"]
| Field | Value |
|---|---|
| Subdivision | Group |
| Name | Acapulcoite |
| Alternative_names | Acapulcoites, Acapulcoite group, Acapulcoite meteorites |
| Image | NWA 2989 meteorite, acapulcoite (14601736517).jpg |
| Image_caption | NWA 2989, an example of an acapulcoite meteorite |
| Type | Achondrite |
| Class | Primitive achondrite |
| Subgroups | {{flatlist |
| Structural_classification | ? |
| Parent_body | Unknown |
| Composition | Olivine, orthopyroxene, plagioclase, meteoric iron, troilite |
| Number_of_specimens | Fifty two |
| TKW | |
| :: |
|Subdivision = Group |Name = Acapulcoite |Alternative_names = Acapulcoites, Acapulcoite group, Acapulcoite meteorites |Image = NWA 2989 meteorite, acapulcoite (14601736517).jpg |Image_caption = NWA 2989, an example of an acapulcoite meteorite |Type = Achondrite |Class = Primitive achondrite |Clan = |Subgroups = {{flatlist|
- None? |Structural_classification = ? |Parent_body = Unknown |Composition = Olivine, orthopyroxene, plagioclase, meteoric iron, troilite |Petrologic_type = |Number_of_specimens = Fifty two |TKW = |Image2 = |Image2_caption = Acapulcoites are a group of the primitive achondrite class of stony meteorites.
Naming and history
The acapulcoites are named after the only specimen of the group that was a witnessed fall. The Acapulco meteorite fell on 11 August 1976 at 11:00 near El Quemado Colony (), outside Acapulco, Guerrero, Mexico. The stone was retrieved 15 minutes afterwards from a 30 cm deep crater and was cool to the touch. It had a mass of 1914 g. Following that discovery, more than 90 meteorite specimens have been classified as acapulcoites.
Chemical composition
Acapulcoites are primarily composed of olivine, orthopyroxene, plagioclase, meteoric iron, and troilite.
Like all primitive achondrites, acapulcoites have chemical composition and mineralogical similarities with chondrites, and some specimens even show relict chondrules. Their mineral composition lies between H and E chondrites.
References
References
- "Acapulco". Meteoritical Bulletin Database.
- "Meteoritical Bulletin Database". Meteoritical Bulletin.
- "PAC Group - Primitive Achondrites". Meteorite.fr.
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