Meteoritical Bulletin: Entry for Queen Alexandra Range 99038

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Queen Alexandra Range 99038

Basic information

Name: Queen Alexandra Range 99038
This is an OFFICIAL meteorite name.
Abbreviation: QUE 99038
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 52.7 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	CM2
Antarctic Meteorite Newsletter:	AMN 24(1)	(2001)	CM2
Meteoritical Bulletin:	MB 85	(2001)	CM2
MetBase:	v. 7.1	(2006)	CM2
Meteoritical Bulletin:	MB 101	(2012)	CV3
Antarctic Meteorite Newsletter:	AMN 36(1)	(2013)	CV3
Recommended:			C2-ung [explanation]

This is 1 of 25 approved meteorites classified as C2-ung. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and Ungrouped chondrites

Comments:

Field number: 11672
Revised 3 Jun 2019: Reclassified in AMN 41(1)

Writeup

Writeup from AMN 24(1):

Sample No.:	QUE 99038
Location:	Queen Alexandra Range
Field No.:	11672
Dimensions (cm):	5.5x3.5x1.5
Weight (g):	52.677
Meteorite Type:	CM2 Chondrite

Macroscopic Description: Kathleen McBride
This carbonaceous chondrite has a dark gray to blackish crust, but appears to be a melted glob of chondrules spread over the entire exterior of the rock. The surface has a vesicular-like texture. The interior is charcoal gray with numerous mm-sized chondrules and light and dark gray crystalline materials. This meteorite is moderately hard and has a sulfurous odor.

Thin Section (, 2) Description: Tim McCoy and Linda Welzenbach
The section consist of a few small chondrules (up to 1.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa_1-39, with many Fa_0-3. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite.

Writeup from AMN 36(1):

Queen Alexandra Range 99038 (QUE 99038)

Antarctica

Found: 1999

Classification: Carbonaceous chondrite (CV3)

reclassification (announced vol. 24, no. 1): This sample was originally classified as a CM2 chondrite. However, A. Rubin (UCLA) brought to our attention several important observations suggesting this classification is incorrect. Inspection of the JSC library section (,9) reveals many large and igneous rimmed chondrules, many CAI and other inclusions, and only a small amount of matrix. The high % matrix and small chondrules typical of a CM2 chondrite are absent. We therefore re-classify this sample as a CV3 chondrite.

Writeup from AMN 41(1):

QUE 99038: reclassification

Listed by Choe et al. (2010) as C2-ungrouped.

Bibliography:

Choe W. H., Huber H., Rubin A.E., Kallemeyn G. W., and Wasson J. T. (2010) Compositions and taxonomy of 15 unusual carbonaceous chondrites. Meteorit. Planet. Sci. 45, 531-554 (link)

Data from:
  MB85
  Table A1
  Line 595:

Origin or pseudonym:	Tail's End Icefield
Mass (g):	52.7
Class:	CM2
Weathering grade:	A/B
Fayalite (mol%):	1-39

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 24(1) (2001), JSC, Houston
Published in Antarctic Meteorite Newsletter 36(1) (2013), JSC, Houston
Published in Antarctic Meteorite Newsletter 41(1) (2018), 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° 32' 2"S, 162° 35' 24"E)

Note: the NHM and recommended coordinates are 84.8 km apart

Statistics:
This is 1 of 44048 approved meteorites from Antarctica (plus 3802 unapproved names)

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