Meteoritical Bulletin: Entry for MacAlpine Hills 02839

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MacAlpine Hills 02839

Basic information

Name: MacAlpine Hills 02839
This is an OFFICIAL meteorite name.
Abbreviation: MAC 02839
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 110.4 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 27(1)	(2004)	EL3
Meteoritical Bulletin:	MB 88	(2004)	EL3
MetBase:	v. 7.1	(2006)	EL3
Recommended:			EL3 [explanation]

This is 1 of 27 approved meteorites classified as EL3. [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites

Comments:

Field number: 14701

Writeup

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Writeup from AMN 27(1):

Sample No.:	MAC 02837; MAC 02839
Location:	MacAlpine Hills
Field No.:	14702; 14701
Dimensions (cm):	8.0x5.5x3.5 7.0x4.5x3.0
Weight (g):	188.639; 110.356
Meteorite Type:	EL3 Chondrite

MAC02837 AND MAC02839

MAC02837 AND MAC02839

Macroscopic Description: Kathleen McBride
50% brown/black fractured fusion crust covers the exterior of these meteorites. The interiors are heavily fractured and very rusty. MAC 02837 was broken into many pieces.

Thin Section (,2) Description: Linda Welzenbach, Tim McCoy
The sections show an aggregate of chondrules (up to 1 mm), chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. Several chondrules contain olivine. Weathering is light, with little staining of enstatite grains and minor alteration of metal and sulfides. Microprobe analyses show the orthopyroxene is Fs_0-6 and metal contains 0.7 wt.% Si. The meteorites are EL3 chondrites and are almost certainly paired.


MAC 02837 Cross-Polarized Light	MAC 02837 Plane-Polarized Light	MAC 02837 Relected Light

MAC 02839 Cross-Polarized Light	MAC 02839 Plane-Polarized Light	MAC 02839 Relected Light

Data from:
  MB88
  Table A1
  Line 100:

Mass (g):	110.356
Class:	EL3
Weathering grade:	C
Ferrosilite (mol%):	0-6

Catalogs:

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

References:

Published in Antarctic Meteorite Newsletter 27(1) (2004), JSC, Houston
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)

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Photos:

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

Geography:

Antarctica

Antarctica

Coordinates:

Unknown.

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

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