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Meteorite Hills 00434
Basic information Name: Meteorite Hills 00434
     This is an OFFICIAL meteorite name.
Abbreviation: MET 00434
Observed fall: No
Year found: 2000
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 6.1 g
NHM Catalogue:  5th Edition  (2000)  CM2
Antarctic Meteorite Newsletter:  AMN 24(2)  (2001)  CM2
Meteoritical Bulletin:  MB 86  (2002)  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
Writeup from AMN 24(2):
Sample No.: MET 0043100433; 00434; 00435
Location: Meteorite Hills
Field No.: 13569; 13755; 13765; 13791
Dimensions (cm): 4.5x3.5x1.0;
Weight (g): 23.368; 10.897; 6.125; 2.385
Meteorite Type: CM2 Chondrite
    MET00431, 433, 434, 435

Macroscopic Description: Kathleen McBride
The exterior of these meteorites is black. The interior is platy and black in color with evaporites and tiny, round, white chondrules.

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

MET 00431 - Cross-Polarized Light MET 00433 - Cross-Polarized Light
MET 00431 Cross-Pol. Light MET 00433 Cross-Pol. Light
The sections consist of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix. Olivine compositions are Fa0-31, with most less than Fa2, and orthopyroxene is Fs0-7. In thin sections, these meteorites exhibit fracturing and flattening of chondrules along a preferred orientation. The matrix is an iron-rich serpentine which occurs in spheres of ~200 microns in diameter, with each sphere exhibiting a fibrous internal texture. Parting of the meteorites occurs between these spheres. The meteorites are CM2 chondrites

Skip TS Images MET00434 435
MET 00434 - Plane-Polarized Light MET 00434 - Reflected Light MET 00434 - Cross-Polarized Light MET 00435 - Cross-Polarized Light
MET 00434 Plane-Pol. Light MET 00434 Reflected Light MET 00434 Cross-Pol. Light MET 00435 Cross-Pol. Light
Data from:
  Table A1
  Line 36:
Mass (g):6.1
Weathering grade:BE
Fayalite (mol%):0-6
Ferrosilite (mol%):3
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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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Photographs from AMN:
Photograph from unknown source A photo is in the write-up above

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

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