Meteoritical Bulletin: Entry for Queen Alexandra Range 99675

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Queen Alexandra Range 99675

Basic information

Name: Queen Alexandra Range 99675
This is an OFFICIAL meteorite name.
Abbreviation: QUE 99675
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)	CK4
Antarctic Meteorite Newsletter:	AMN 25(1)	(2002)	CK4
Meteoritical Bulletin:	MB 86	(2002)	CK4
MetBase:	v. 7.1	(2006)	CK4
Recommended:			CK4 [explanation]

This is 1 of 128 approved meteorites classified as CK4. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites

Comments:

Field number: 11457

Writeup

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Writeup from AMN 25(1):

Sample No.:	QUE 99675; 99676; 99677; 99678; 99679
Location:	Queen Alexandra Range
Field No.:	11457; 12550; 12533; 12547; 12587
Dimensions (cm):	2.0x0.75x0.75; 1.5x0.75x0.75; broken pieces; 2.0x1.0x0.5; 2.5x2.5x0.5
Weight (g):	1.689; 0.924; 1.285; 1.600; 3.728
Meteorite Type:	CK4 Chondrites

QUE99675, 676, 677, 678, 679

Macroscopic Description: Kathleen McBride
The exteriors of these carbonaceous chondrites have patches of rough, black fusion crust with polygonal fractures. The interior is a dark gray matrix.

Thin Section (, 3) Descriptions: Gretchen Benedix, Linda Welzenbach, and Tim McCoy


QUE 99675 Plane-Pol. Light	QUE 99675 Cross-Pol. Light

These sections are so similar that a single description suffices. The section consists of large (up to 1 mm) chondrules in a matrix of finer-grained silicates, sulfides, and very abundant magnetite. The meteorites are little weathered, but extensively shock blackened. Silicates are homogeneous. Olivine is Fa₂₈ and orthopyroxene is Fs_24-25. The meteorites are CK4 chondrites.


QUE 99676 Plane-Pol. Light	QUE 99676 Cross-Pol. Light	QUE 99677 Plane-Pol. Light	QUE 99677 Cross-Pol. Light


QUE 99678 Plane-Pol. Light	QUE 99678 Cross-Pol. Light	QUE 99678 Plane-Pol. Light	QUE 99678 Cross-Pol. Light


QUE 99679 Plane-Pol. Light	QUE 99679 Cross-Pol. Light	QUE 99679 Plane-Pol. Light	QUE 99679 Cross-Pol. Light

Data from:
  MB86
  Table A1
  Line 590:

Origin or pseudonym:	Goodwin Nunataks Icefields
Mass (g):	1.7
Class:	CK4
Weathering grade:	Ce
Fayalite (mol%):	28
Comments:	99675 pairing group

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 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

Antarctica

Coordinates:
Catalogue of Meteorites:	(84°S, 168°E)
Recommended::	(84° 37' 4"S, 161° 26' 38"E)

Note: the NHM and recommended coordinates are 100.1 km apart

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

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