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Queen Alexandra Range 99799
Basic information Name: Queen Alexandra Range 99799
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 99799
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 8.3 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Eucrite-br
Antarctic Meteorite Newsletter:  AMN 24(2)  (2001)  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: 12184
Writeuphelp
Writeup from AMN 24(2):
Sample No.: QUE 99799
Location: Queen Alexandra Range
Field No.: 12184
Dimensions (cm): 2.5x2.0x1.25
Weight (g): 8.298
Meteorite Type: Eucrite (Brecciated)
    QUE99799

Macroscopic Description: Kathleen McBride
Approximately 40% of this achondrite's exterior has a shiny black fusion crust with some dull and weathered patches. The interior is white matrix with long, thin black minerals. The meteorite looks shocked. A broken, weathered face has small, black globs that resemble fusion crust.

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

Skip TS Images que99799
QUE 99799 - Plane-Polarized Light QUE 99799 - Cross-Polarized Light QUE 99799 - Cross-Polarized Light
Plane-Polarized Light Cross-Polarized Light Cross-Polarized Light
The section exhibits a brecciated texture dominated by equant pyroxenes ~200 microns in diameter and plagioclase laths reaching 0.5 mm in length. Pyroxene is finely exsolved with compositions ranging from Fs23Wo40 to Fs54Wo2, as well as intermediate compositions. The Fe/Mn ratio of the pyroxene is ~28. Plagioclase is An80Or1. The meteorite is a brecciated eucrite.

Data from:
  MB86
  Table A1
  Line 313:
Origin or pseudonym:Goodwin Nunataks Icefields
Mass (g):8.3
Class:Eu "br”
Weathering grade:B
Ferrosilite (mol%):23-54
Catalogs:
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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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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° 36' 58"S, 161° 28' 12"E)
Note: the NHM and recommended coordinates are 99.7 km apart

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