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Queen Alexandra Range 99609
Basic information Name: Queen Alexandra Range 99609
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 99609
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 24.5 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Eucrite-br
Antarctic Meteorite Newsletter:  AMN 25(1)  (2002)  Eucrite-br
Meteoritical Bulletin:  MB 86  (2002)  Eucrite-br
MetBase:  v. 7.1  (2006)  Eucrite
Recommended:  Eucrite-br    [explanation]

This is 1 of 167 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Field number: 11405
Writeuphelp
Writeup from AMN 25(1):
Sample No.: QUE 99609
Location: Queen Alexandra Range
Field No.: 11405
Dimensions (cm):   *see note below
Weight (g): 24.507
Meteorite Type: Eucrite (Brecciated)
    QUE99609

Macroscopic Description: Kathleen McBride
The exterior has a shiny black fusion crust with yellow rust-colored circular splotches. The interior is powdery, light gray matrix and very friable. Submillimeter clasts of gray and white are mixed throughout.
* Meteorite was returned broken into numerous chips and fines. The largest piece shows that the rock was circular in shape or perhaps like a disk. Measurement from fusion crust to fusion crust is ~1.5 cm.

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

QUE 99609 - Plane-Polarized Light QUE 99609 - Cross-Polarized Light
Plane-Polarized Light Cross-Polarized Light
This meteorite consists of a finely comminuted matrix containing individual mineral grains of plagioclase and pyroxene and basaltic to gabbroic clasts up to 2 mm in diameter, which themselves exhibit a wide range of grains sizes. Pyroxenes are finely exsolved with end member compositions for orthopyroxene of Fs59Wo3 and augite of Fs29Wo40. Plagioclase is An90. The Fe/Mn ratio of the pyroxene is ~27. The meteorite is a brecciated eucrite.
Data from:
  MB86
  Table A1
  Line 568:
Origin or pseudonym:Goodwin Nunataks Icefields
Mass (g):24.5
Class:Eu "br”
Weathering grade:B
Ferrosilite (mol%):59
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 25(1) (2002), JSC, Houston
Published in Meteoritical Bulletin, no. 86, MAPS 37, A157-A184 (2002)
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Photos:
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Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (84°S, 168°E)
     Recommended::   (84° 38' 29"S, 161° 20' 53"E)
Note: the NHM and recommended coordinates are 102.5 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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