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Allan Hills A80124
Basic information Name: Allan Hills A80124
     This is an OFFICIAL meteorite name.
Abbreviation: ALHA80124
This meteorite may also be called Allan Hills 80124 (ALH 80124) in publications.

Observed fall: No
Year found: 1980
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 12 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 5(1)  (1982)  H5
Meteoritical Bulletin:  MB 76  (1994)  H5
NHM Catalogue:  5th Edition  (2000)  H5
MetBase:  v. 7.1  (2006)  H5
Recommended:  H5    [explanation]

This is 1 of 9655 approved meteorites (plus 16 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from AMN 5(1):

Sample No.: ALHA80124

Location: Allan Hills

Field No.: 1019

Weight (gms): 11.9

Meteorite Type: H5 Chondrite

 

Physical Description: Roberta Score

This sample is almost completely covered with dull black fusion crust. The interior is medium gray and contains clasts. Several white 1 min sized clasts are visible as well as smaller dark colored inclusions. A small weathering rind is present. Dimensions: 2 x 2 x 1.5 cm

 

Petrographic Description: Brian Mason

Chondritic structure is well developed, but chondrule margins tend to merge with the granular groundmass, which consists of olivine and pyroxene with minor amounts of nickel-iron and troilite and possibly a little fine-grained plagioclase. Fusion crust is present along the edges. Weathering is limited to limonitic staining around metal grains. Microprobe analyses gave the following compositions: olivine, Fa18; pyroxene, Fs16. The meteorite is classified as an H5 chondrite.

Data from:
  MB76
  Table 2
  Line 514:
Origin or pseudonym:Main icefield
Mass (g):12
Class:H5
Weathering grade:B
Fayalite (mol%):18
Ferrosilite (mol%):16
Comments:80111 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 5(1) (1982), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (76° 43'S, 159° 40'E)
     Recommended::   (76° 41' 47"S, 159° 19' 46"E)
Note: the NHM and MetBase coordinates are 8.9 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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