Meteoritical Bulletin: Entry for MacAlpine Hills 02833

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MacAlpine Hills 02833

Basic information

Name: MacAlpine Hills 02833
This is an OFFICIAL meteorite name.
Abbreviation: MAC 02833
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 134.1 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 27(1)	(2004)	H3.7
Meteoritical Bulletin:	MB 88	(2004)	H3.7
MetBase:	v. 7.1	(2006)	H3.7
Recommended:			H3.7 [explanation]

This is 1 of 75 approved meteorites classified as H3.7. [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Field number: 14404

Writeup

Writeup from AMN 27(1):

Sample No.:	MAC 02833
Location:	MacAlpine Hills
Field No.:	14404
Dimensions (cm):	4.5x4.5x3.0
Weight (g):	134.096
Meteorite Type:	H3 Chondrite (Estimated 3.7)

Macroscopic Description: Kathleen McBride
Brown/black fusion crust with oxidation haloes covers the entire exterior surface. The interior is a medium gray matrix with high metal and light colored, rust stained chondrules, 1-4 mm in size.

Thin Section (,2) Description: Linda Welzenbach, Tim McCoy
The section exhibits numerous, well-defined chondrules (up to 3 mm) in a black matrix of silicates, metal and troilite. Weak shock effects are present and polysynthetically twinned pyroxenes are present. The meteorite is mildly weathered. Silicates are unequilibrated; olivines range from Fa_13-27, with a peak from Fa_16-19, and pyroxenes from Fs_2-16. The meteorite is a H3 chondrite (estimated subtype 3.7).


Cross-Polarized Light	Plane-Polarized Light	Reflected Light	Cross-Polarized Light

Data from:
  MB88
  Table A1
  Line 94:

Mass (g):	134.096
Class:	H3.7
Weathering grade:	B/C
Fayalite (mol%):	13-27
Ferrosilite (mol%):	2-16

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

Coordinates:
Recommended::	(84° 16' 43"S, 159° 54' 36"E)

Note: the MetBase and recommended coordinates are 9.6 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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