Meteoritical Bulletin: Entry for MacAlpine Hills 02755

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MacAlpine Hills 02755

Basic information

Name: MacAlpine Hills 02755
This is an OFFICIAL meteorite name.
Abbreviation: MAC 02755
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 3.52 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 28(1)	(2005)	CM2
Meteoritical Bulletin:	MB 89	(2005)	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

Comments:

Field number: 14191

Writeup

Writeup from AMN 28(1):

Sample No.:	MAC 02755
Location:	MacAlpine Hills
Field No.:	14191
Dimensions (cm):	2.0x1.25x1.5
Weight (g):	3.52
Meteorite Type:	CM2 Chondrite

Macroscopic Description: Kathleen McBride
The exterior has smooth brown/black fusion crust on 75% of its surface. The interior has a black matrix with light colored chondrules.

Thin Section (,3) Description: Cari Corrigan, Tim McCoy


Cross-Polarized Light	Plane-Polarized Light

The section consists of numerous small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Chondrules exhibit significant alteration and shock flattening. Olivine compositions are Fa_1-40, with a peak at Fa_0-2. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite.

Data from:
  MB89
  Table A1
  Line 493:

Origin or pseudonym:	Bottom Lip
Mass (g):	3.52
Class:	CM2
Weathering grade:	B
Fayalite (mol%):	1-40

Catalogs:

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

References:

Published in Antarctic Meteorite Newsletter 28(1) (2005), 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° 18' 49"S, 159° 44' 28"E)

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

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Revision
history:

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