Meteoritical Bulletin: Entry for Meteorite Hills 00426

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Meteorite Hills 00426

Basic information

Name: Meteorite Hills 00426
This is an OFFICIAL meteorite name.
Abbreviation: MET 00426
Observed fall: No
Year found: 2000
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 31.3 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	CR2
Antarctic Meteorite Newsletter:	AMN 24(2)	(2001)	CR2
Meteoritical Bulletin:	MB 86	(2002)	CR2
MetBase:	v. 7.1	(2006)	CR2
Recommended:			CR2 [explanation]

This is 1 of 185 approved meteorites classified as CR2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites

Writeup

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Writeup from AMN 24(2):

Sample No.:	MET 00426
Location:	Meteorite Hills
Field No.:	13708
Dimensions (cm):	3.5x3.0x2.0
Weight (g):	31.326
Meteorite Type:	CR2 Chondrite

MET00426

Macroscopic Description: Kathleen McBride
Mostly weathered fusion crust covers about 40% of the exterior surface of this meteorite. The crust resembles an overcooked brownie. The rest of the exposed surface is dark brown in color and looks like an amalgamation of melted brown chondrules. The interior of this carbonaceous chondrite is black and contains irregular shaped clasts and numerous white and rust colored chondrules 1-2 mm in size. The meteorite was easily broken and is very friable.

Thin Section (,2) Description: Tim McCoy and Linda Welzenbach


Plane-Polarized Light	Cross-Polarized Light

The section exhibits well-defined, metal-rich chondrules up to 3 mm and metal spheres up to 1 mm in a dark matrix of FeO-rich phyllosilicate. Polysynthetically twinned pyroxene is abundant. Silicates are unequilibrated; olivines range from Fa_1-32, with most Fa_0-2, and pyroxenes from Fs_1-4Wo_0-1. The meteorite is probably a CR2 chondrite.

Data from:
  MB86
  Table A1
  Line 30:

Mass (g):	31.3
Class:	CR2
Weathering grade:	B
Fayalite (mol%):	1-32
Ferrosilite (mol%):	1-4

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 24(2) (2001), JSC, Houston
Published in Meteoritical Bulletin, no. 86, MAPS 37, A157-A184 (2002)

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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:
Catalogue of Meteorites:	(79° 41'S, 155° 45'E)
Recommended::	(79° 41'S, 155° 45'E)

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
history:

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