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Queen Alexandra Range 99680
Basic information Name: Queen Alexandra Range 99680
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 99680
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 15.7 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  CK5
Antarctic Meteorite Newsletter:  AMN 25(2)  (2002)  CK5
Meteoritical Bulletin:  MB 87  (2003)  CK5
MetBase:  v. 7.1  (2006)  CK5
Recommended:  CK5    [explanation]

This is 1 of 162 approved meteorites classified as CK5.   [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: 12579
Writeuphelp
Writeup from AMN 25(2):
Sample No.: QUE 99680; QUE 99681
Location: Queen Alexandra Range
Field No.: 12579; 12568
Dimensions (cm):   3.5x2.5x1.5
2.0x1.5x1.25
Weight (g): 15.677; 3.952
Meteorite Type: CK5 Chondrite
    QUE99680 and QUE99681

Macroscopic Description: Kathleen McBride
The exterior of 680 is covered with 50% brown/black fusion crust with polygonal fractures. The interior is a vuggy, weathered charcoal gray matrix with evaporites. The rock contains white and gray inclusions, ranging in size from 1-3 mm. 681 has 20% black fusion crust with polygonal fractures and evaporites. The interior is similar to 680 but has more evaporites and, an evaporite material that gives the rock the appearance of being smeared with toothpaste. White and gray inclusions are visible ranging in size from <1 - 2 mm.

Thin Section (, 2) Description: Gretchen Benedix, Linda Welzenbach, and Tim McCoy
These two meteorites are so similar that a single description suffices. The sections consist of large (up to 2 mm), well-defined 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 Fa29 and orthopyroxene is Fs21-23. The meteorites are CK5 chondrites.

Skip Thin Section Images QUE99680 681
QUE 99680 - Plane-Polarized Light QUE 99681 - Plane-Polarized Light QUE 99681 - Cross-Polarized Light
Plane-Polarized Light Plane-Polarized Light Cross-Polarized Light
Data from:
  MB87
  Table A1
  Line 224:
Origin or pseudonym:Goodwin Nunataks Icefields
Mass (g):15.677
Class:CK5
Weathering grade:Ce
Fayalite (mol%):29
Ferrosilite (mol%):21
Comments:99680 pairing group
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 25(2) (2002), JSC, Houston
Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)
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Photos:
CreditPhotos
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° 37' 7"S, 161° 26' 28"E)
Note: the NHM and recommended coordinates are 100.1 km apart

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)
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