Meteoritical Bulletin: Entry for Queen Alexandra Range 99177

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Queen Alexandra Range 99177

Basic information

Name: Queen Alexandra Range 99177
This is an OFFICIAL meteorite name.
Abbreviation: QUE 99177
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 43.6 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	CR2
Antarctic Meteorite Newsletter:	AMN 24(2)	(2001)	CR2
Meteoritical Bulletin:	MB 86	(2002)	CR2
MetBase:	v. 7.1	(2006)	CR2
Recommended:			CR2 [explanation]

This is 1 of 187 approved meteorites classified as CR2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites

Comments:

Field number: 11631

Writeup

Writeup from AMN 24(2):

Sample No.:	QUE 99177
Location:	Queen Alexandra Range
Field No.:	11631
Dimensions (cm):	4.0x3.0x2.0
Weight (g):	43.555
Meteorite Type:	CR2 Chondrite

Macroscopic Description: Kathleen McBride
The exterior is completely covered with weathered brown-black fusion crust exhibiting polygonal fractures and evaporites. The interior is a chocolate brown, soft matrix with rust and cream colored chondrules ranging in size from 1 to 3 mm.

Thin Section (,4) Description: Tim McCoy and Linda Welzenbach
The section exhibits well-defined, metal-rich chondrules up to 2 mm in diameter in a dark matrix of FeO-rich phyllosilicate and metal. Polysynthetically twinned pyroxene is abundant. Silicates are unequilibrated; olivines range from Fa_1-31, with most Fa_0-2, and pyroxenes from Fs_1-7Wo_1-5. The meteorite is probably a CR2 chondrite.


Plane-Polarized Light	Plane-Polarized Light	Cross-Polarized Light	Cross-Polarized Light

Data from:
  MB86
  Table A1
  Line 142:

Origin or pseudonym:	W. Tail's End Icefield
Mass (g):	43.6
Class:	CR2
Weathering grade:	BE
Fayalite (mol%):	1-31
Ferrosilite (mol%):	1-7

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(2) (2001), 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° 33' 2"S, 162° 25' 34"E)

Note: the NHM and recommended coordinates are 87.3 km apart

Statistics:
This is 1 of 43857 approved meteorites from Antarctica (plus 3802 unapproved names)

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