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Queen Alexandra Range 99231
Basic information Name: Queen Alexandra Range 99231
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 99231
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1.5 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Diogenite
Antarctic Meteorite Newsletter:  AMN 24(2)  (2001)  Diogenite
Meteoritical Bulletin:  MB 86  (2002)  Diogenite
MetBase:  v. 7.1  (2006)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 465 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Field number: 11649
Writeuphelp
Writeup from AMN 24(2):
Sample No.: QUE 99231
Location: Queen Alexandra Range
Field No.: 11649
Dimensions (cm):   1.5x1.0x0.75
Weight (g): 1.497
Meteorite Type: Diogenite
    QUE99231

Macroscopic Description: Kathleen McBride
25% of the exterior surface is covered with thin, black shiny fusion crust. This achondrite's interior has an off-white, opaque crystalline matrix with ~ 1 mm size black and green minerals.

Thin Section (,3) Description: Tim McCoy and Linda Welzenbach

QUE 99231 - Cross-Polarized Light QUE 99231 - Cross-Polarized Light
Cross-Polarized Light Cross-Polarized Light
The section shows a groundmass of coarse (up to 2 mm) comminuted orthopyroxene, with a composition of Fs20Wo1-2. The Fe/Mn ratio of the pyroxene is ~30. The section exhibits a slight granoblastic texture. The meteorite is a diogenite.

Data from:
  MB86
  Table A1
  Line 196:
Origin or pseudonym:Mare Meteoriticus
Mass (g):1.5
Class:Diog
Weathering grade:A
Ferrosilite (mol%):20
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° 33' 19"S, 162° 6' 25"E)
Note: the NHM and recommended coordinates are 90.2 km apart

Statistics:
     This is 1 of 40849 approved meteorites from Antarctica (plus 4494 unapproved names)
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