Meteoritical Bulletin: Entry for Queen Alexandra Range 99342

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Queen Alexandra Range 99342

Basic information

Name: Queen Alexandra Range 99342
This is an OFFICIAL meteorite name.
Abbreviation: QUE 99342
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 1.7 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	CM2
Antarctic Meteorite Newsletter:	AMN 25(1)	(2002)	CM2
Meteoritical Bulletin:	MB 86	(2002)	CM2
MetBase:	v. 7.1	(2006)	CM2
Recommended:			CM2 [explanation]

This is 1 of 636 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Comments:

Field number: 12728

Writeup

Writeup from AMN 25(1):

Sample No.:	QUE 99342
Location:	Queen Alexandra Range
Field No.:	12728
Dimensions (cm):	1.25x1.0x1.0
Weight (g):	1.702
Meteorite Type:	CM2 Chondrite

Macroscopic Description: Kathleen McBride
75% of this carbonaceous chondrite's exterior is covered with dull purple black fusion crust. The interior is composed of black matrix with evaporites and < 1 mm light gray clasts.

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


Plane-Polarized Light	Cross-Polarized Light

The section consist of a few small chondrules (up to 1 mm), mineral grains, and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa_0-37, with a prominent peak at Fa_0-2. The matrix consists dominantly of Fe-rich serpentine. The meteorite is a CM2 chondrite.

Data from:
  MB86
  Table A1
  Line 316:

Origin or pseudonym:	Goodwin Nunataks Icefields
Mass (g):	1.7
Class:	CM2
Weathering grade:	Be
Fayalite (mol%):	2-37
Comments:	99342 pairing group

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
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References:

Published in Antarctic Meteorite Newsletter 25(1) (2002), JSC, Houston
Published in Meteoritical Bulletin, no. 86, MAPS 37, A157-A184 (2002)

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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' 58"S, 161° 28' 5"E)

Note: the NHM and recommended coordinates are 99.7 km apart

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

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