Meteoritical Bulletin: Entry for Allan Hills 84042

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Allan Hills 84042

Basic information

Name: Allan Hills 84042
This is an OFFICIAL meteorite name.
Abbreviation: ALH 84042
Observed fall: No
Year found: 1984
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 51.3 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 636 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Writeup

Writeup from AMN 8(2):

Sample No.: ALH84042

Location: Allan Hills

Weight (g): 51.2

Field No.: 2054

Dimensions (cm): 5.5 x 4.5 x 2

Meteorite Type: C2 Chondrite

Macroscopic Description: Carol Schwarz

The meteorite is black, fine-grained, and similar to ALH83100.

Thin Section (,4) Description: Glenn MacPherson

See ALH84029 for description.

Data from:
  MB76
  Table 2
  Line 1007:

Origin or pseudonym:	Far Western
Mass (g):	51.3
Class:	CM2
Weathering grade:	A
Fayalite (mol%):	0-2
Comments:	83100 pairing group

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 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' 34"S, 157° 4' 23"E)

Note: the NHM and MetBase coordinates are 75.1 km apart

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

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history:

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