Meteoritical Bulletin: Entry for Queen Alexandra Range 97991

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Queen Alexandra Range 97991

Basic information

Name: Queen Alexandra Range 97991
This is an OFFICIAL meteorite name.
Abbreviation: QUE 97991
Observed fall: No
Year found: 1997
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 6.8 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	Diogenite
Antarctic Meteorite Newsletter:	AMN 23(2)	(2000)	Diogenite
Meteoritical Bulletin:	MB 85	(2001)	Diogenite
MetBase:	v. 7.1	(2006)	Diogenite
Recommended:			Diogenite [explanation]

This is 1 of 522 approved meteorites classified as Diogenite. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Field number: 9663

Writeup

Writeup from AMN 23(2):

Sample No.:	QUE 97991
Location:	Queen Alexandra Range
Dimensions (cm):	2.0x1.25x1.5
Weight (g):	6.766
Meteorite Type:	Diogenite

Macroscopic Description: Kathleen McBride
The exterior of this achondrite has dull black fusion crust on 45% of its surface. The interior is a tan matrix with melted appearing clasts and some minor cracks. The meteorite is friable and coarse grained with rust scattered. Irregularly shaped inclusions are white and black.

Thin Section (, 3) Description: Tim McCoy
The section shows a groundmass of coarse (up to 1.5 mm) comminuted pyroxene, with minor plagioclase and SiO₂. Orthopyroxene has a composition of Fs₂₅Wo_1-4 and plagioclase is An_78-85Or_0-3. The Fe/Mn ratio of the pyroxene is ~30. The meteorite is a diogenite.

Data from:
  MB85
  Table A1
  Line 562:

Origin or pseudonym:	W. Foggy Bottom Moraine
Mass (g):	6.8
Class:	Diog
Weathering grade:	B
Ferrosilite (mol%):	25

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 23(2) (2000), JSC, Houston
Published in Meteoritical Bulletin, no. 85, MAPS 36, A293-A322 (2001)

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Photos:

Credit	Photos
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' 0"S, 162° 11' 24"E)

Note: the NHM and recommended coordinates are 92.9 km apart

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
history:

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