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Queen Alexandra Range 99059
Basic information Name: Queen Alexandra Range 99059
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 99059
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 22.1 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  E-ung
Antarctic Meteorite Newsletter:  AMN 24(1)  (2001)  Enstatite meteorite-unusual
Meteoritical Bulletin:  MB 85  (2001)  E-ung
MetBase:  v. 7.1  (2006)  E-an
Recommended:  E-an    [explanation]

This is 1 of 5 approved meteorites classified as E-an.   [show all]
Search for other: Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Field number: 11685
Writeuphelp
Writeup from AMN 24(1):
Sample No.: QUE 99059
Location: Queen Alexandra Range
Field No.: 11685
Dimensions (cm):   3.0x2.0x2.0
Weight (g): 22.064
Meteorite Type: Enstatite Meteorite Unusual
    QUE99059

Macroscopic Description: Kathleen McBride
10% of the exterior surface of this achondrite is covered with thin brown/black patches of fusion crust. The meteorite is rusty, friable, and very fractured. The interior matrix has a rusty, sugary texture exhibiting elongated crystals, melted blebs and numerous inclusions.

Thin Section (, 4) Description: Tim McCoy and Linda Welzenbach

QUE 99059 - Reflected Light QUE 99059 - Cross-Polarized Light QUE 99059 - Cross-PolarizedLight
Reflected Light Cross-Polarized Light Cross-Polarized Light
The section consists of mm-sized enstatite grains (Fs0-1), abundant SiO2, metal, troilite, daubreelite, alabandite and schreibersite. The latter phases often occur as rounded enclaves in the enstatite. QUE 99059 is almost certainly paired with the trio QUE 94204/97348/97289, although it differs from them in having abundant SiO2 instead of abundant feldspar. These meteorites are unusual aubrites or enstatite chondrite impact melt rocks.

Data from:
  MB85
  Table A1
  Line 615:
Origin or pseudonym:W. Tail's End Icefield
Mass (g):22.1
Class:E-ung
Weathering grade:C
Ferrosilite (mol%):0-1
Comments:94204 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 24(1) (2001), JSC, Houston
Published in Meteoritical Bulletin, no. 85, MAPS 36, A293-A322 (2001)
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Photos:
CreditPhotos
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° 33' 28"S, 162° 30' 25"E)
Note: the NHM and recommended coordinates are 87.2 km apart

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