Meteoritical Bulletin: Entry for MacAlpine Hills 02556

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MacAlpine Hills 02556

Basic information

Name: MacAlpine Hills 02556
This is an OFFICIAL meteorite name.
Abbreviation: MAC 02556
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 1.41 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 27(3)	(2004)	E3
Meteoritical Bulletin:	MB 89	(2005)	E3
MetBase:	v. 7.1	(2006)	E3
Recommended:			E3 [explanation]

This is 1 of 206 approved meteorites classified as E3. [show all]
Search for other: Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites

Comments:

Field number: 14491

Writeup

Writeup from AMN 27(3):

Sample No.:	MAC 02556
Location:	MacAlpine Hills
Field No.:	14280
Dimensions (cm):	0.75x1.00x0.5
Weight (g):	1.411
Meteorite Type:	E3 Chondrite

Macroscopic Description: Kathleen McBride
The entire exterior is covered with shiny brown/black fusion crust. The interior has a rusty, crystalline surface texture with a high metal content.

Thin Section (,2) Description: Tim McCoy, Cari Corrigan


Cross-Polarized Light	Plane-Polarized Light

The section shows an aggregate of small chondrules (up to 1 mm), abundant chondrule fragments, and pyroxene grains in a heavily weathered matrix. Several chondrules contain olivine. Microprobe analyses show the, orthopyroxene is Fs_0-1. The meteorite is an E3 chondrite. The complete weathering of metal makes the subtype (EH vs. EL) uncertain.

Data from:
  MB89
  Table A1
  Line 332:

Origin or pseudonym:	Quiche Moraine
Mass (g):	1.41
Class:	E3
Weathering grade:	C
Ferrosilite (mol%):	0-1

Catalogs:

Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 27(3) (2004), JSC, Houston
Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)

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Photos:

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

Geography:

Antarctica

Coordinates:
Recommended::	(84° 16' 45"S, 159° 55' 8"E)

Note: the MetBase and recommended coordinates are 9.5 km apart

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

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Revision
history:

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