Meteoritical Bulletin: Entry for Meteorite Hills 00423

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 15 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Meteorite Hills 00423

Basic information

Name: Meteorite Hills 00423
This is an OFFICIAL meteorite name.
Abbreviation: MET 00423
Observed fall: No
Year found: 2000
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 79.4 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	Howardite
Antarctic Meteorite Newsletter:	AMN 24(2)	(2001)	Howardite
Meteoritical Bulletin:	MB 86	(2002)	Howardite
MetBase:	v. 7.1	(2006)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 451 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Writeup

Writeup from AMN 24(2):

Sample No.:	MET 00423
Location:	Meteorite Hills
Field No.:	13556
Dimensions (cm):	6.0x4.0x3.5
Weight (g):	79.375
Meteorite Type:	Howardite

Macroscopic Description: Kathleen McBride
~40% of the exterior surface is covered by dark brown fusion crust that has shiny, black patches. The surface contains "vugs" or areas where material has been plucked or weathered out. The fine-grained medium gray matrix has numerous euhedral clasts in various colors - gray, black, tan and white.

Thin Section (,2) Description: Tim McCoy and Linda Welzenbach
The section shows a groundmass of comminuted pyroxene and plagioclase (up to 1 mm) with medium- to coarse-grained basaltic clasts ranging up to 3 mm. Pyroxene includes orthopyroxene (Fs_20-53Wo_1-3) and exsolved pyroxenes of Fs₄₉Wo₅ to Fs₂₂Wo₃₈. The Fe/Mn ratio is ~30. Plagioclase is An_78-93Or_0-1. The meteorite is a howardite.

Data from:
  MB86
  Table A1
  Line 27:

Mass (g):	79.4
Class:	How
Weathering grade:	A/B
Ferrosilite (mol%):	20-53

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 24(2) (2001), JSC, Houston
Published in Meteoritical Bulletin, no. 86, MAPS 37, A157-A184 (2002)

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photographs from AMN:
Photograph from unknown source	A photo is in the write-up above

Geography:

Antarctica

Coordinates:
Catalogue of Meteorites:	(79° 41'S, 155° 45'E)
Recommended::	(79° 41'S, 155° 45'E)

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

Proximity search:

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page