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Allan Hills 84032
Basic information Name: Allan Hills 84032
     This is an OFFICIAL meteorite name.
Abbreviation: ALH 84032
Observed fall: No
Year found: 1984
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 7.9 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 8(2)  (1985)  C2
AMN 17(1)  (1994)  CM2
Meteoritical Bulletin:  MB 76  (1994)  CM2
NHM Catalogue:  5th Edition  (2000)  CM2
MetBase:  v. 7.1  (2006)  CM2
Recommended:  CM2    [explanation]

This is 1 of 505 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Writeuphelp
Writeup from AMN 8(2):

Sample No : ALH84032

Location: Allan Hills

Weight (g): 7.9

Field No.: 2020

Dimensions (cm): 3 x 2 x 1.5

Meteorite Type: C2 Chondrite

 

Macroscopic Description: Carol Schwarz

This fragment is black, fine-grained and similar to ALH83100. The interior is also black and fine-grained with no distinguishing features.

 

Thin Section (,2) Description: Glenn MacPherson

See ALH84029 for description. However, a rare grain of pyroxene (Wo4En94Fs2) and one refractory inclusion with relict spinel (MgAl2O4) were also found in ALH84032.

Data from:
  MB76
  Table 2
  Line 997:
Origin or pseudonym:Far Western
Mass (g):7.9
Class:CM2
Weathering grade:A
Fayalite (mol%):0-2
Ferrosilite (mol%):2
Comments:83100 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 8(2) (1985), 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::   (77° 2' 22"S, 157° 4' 18"E)
Note: the NHM and MetBase coordinates are 75 km apart

Statistics:
     This is 1 of 38940 approved meteorites from Antarctica (plus 5051 unapproved names)
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