Meteoritical Bulletin: Entry for MacAlpine Hills 02779

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MacAlpine Hills 02779

Basic information

Name: MacAlpine Hills 02779
This is an OFFICIAL meteorite name.
Abbreviation: MAC 02779
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 0.3 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 540 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: 14251

Writeup

Writeup from AMN 28(1):

Sample No.:	MAC 02779; MAC 02854
Location:	MacAlpine Hills
Field No.:	14251; 14712
Dimensions (cm):	0.5x0.5x0.75 0.75x0.5x0.5
Weight (g):	0.301; 0.140
Meteorite Type:	CM2 Chondrite

Macroscopic Description: Kathleen McBride
The exterior of these carbonaceous chondrites ranges from black to brown with rusty areas. Some metal is visible.

Thin Section (,2) Description: Cari Corrigan, Tim McCoy
The sections of these very small meteorites consist of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa_1-39, with a peak at Fa_1-3. The matrix consists dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites.


MAC 02779 Cross-Polarized Light	MAC 02779 Plane-Polarized Light	MAC 02854 Plane-Polarized Light

Data from:
  MB89
  Table A1
  Line 512:

Origin or pseudonym:	Bottom Lip
Mass (g):	0.3
Class:	CM2
Weathering grade:	B
Fayalite (mol%):	1-39
Comments:	02779 pairing group

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' 54"S, 159° 47' 10"E)

Statistics:
This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)

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