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Queen Alexandra Range 93069
Basic information Name: Queen Alexandra Range 93069
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 93069
Observed fall: No
Year found: 1993
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 21.4 g
Antarctic Meteorite Newsletter:  AMN 17(2)  (1994)  Lunar (anorthositic breccia)
Meteoritical Bulletin:  MB 79  (1996)  Lunar-anorthositic
NHM Catalogue:  5th Edition  (2000)  Lunar (anorth)
MetBase:  v. 7.1  (2006)  Lunar (anorth)
Recommended:  Lunar (anorth)    [explanation]

This is 1 of 80 approved meteorites classified as Lunar (anorth).   [show all]
Search for other: Lunar meteorites
Comments: Field number: 7940
Writeup from AMN 17(2):

Sample No.: QUE93069

Location: Queen Alexandra Range

Dimensions (cm): 5.0 x 2.2 x 2.3

Weight (g): 21.4

Weathering: A/B

Fracturing: B

Meteorite Type: Lunar-anorth. breccia


Macroscopic Description: Cecilia Satterwhite and Marilyn Lindstrom

The overall shape of this lunar meteorite is approximately one third of a flat ovoid. Thick gray-green frothy fusion crust covers the top while thin granular medium olive green-brown fusion crust covers the bottom. The north face is a fractured surface with exposed interior matrix and abundant fractures. This surface consists of black matrix with abundant millimeter sized white/ gray clasts. Some clasts have weathered to a yellowish color. One gray clast is visible in a fracture. Cleaving this meteorite revealed a lighter gray matrix with small clasts of various sizes. One white, friable clast (3 x 2 mm) is directly below the fusion crust. An area 2 x 2 mm near this clast has a uniform, dusty-gray appearance with an indistinguish-able border. All of the clasts present are small and friable and unfortunately may not be extractable.


Thin Section (.5) Description: Brian Mason

The section shows a microbreccia of small plagioclase grains and granular clasts, up to 0.6 mm across, in a translucent to semi-opaque brown glassy matrix; colorless vesicular fusion crust is present on one edge. There is one large clast, 2.4 x 3.6 mm, of pale brown partly devitrified glass. Traces of metallic iron, as irregular grains up to 40 microns, are present. Microprobe analyses show that the plagioclase is almost pure anorthite (Na2O 0.3-0.4%, K2O less than 0.1%). The composition of the fusion crust, probably a reasonable approximation for the bulk meteorite, is (weight percent): SiO2 44, Al2O3 27, FeO 4.4, MgO 4.5, CaO 16, Na2O 0.32, K2O less than 0.1 %, TiO2 0.24, MnO 0.10. The FeO : MnO ratio is high, 44-75, characteristic of lunar material. The meteorite is an anorthositic microbreccia, presumably of lunar origin. In thin section, it is very similar to MAC 88105 (Antarctic Meteorite Newsletter 12(2), 1989).

Data from:
  Table 2
  Line 635:
Origin or pseudonym:Footrot Flats
Mass (g):21.4
Weathering grade:A/B
Comments:NTL=0.0±0.1; 93069 pairing group
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References: Published in Antarctic Meteorite Newsletter 17(2) (1994), JSC, Houston
Published in Meteoritical Bulletin, no. 79, MAPS 31, A161-A174 (1996)
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     Catalogue of Meteorites:   (84°S, 168°E)
     Recommended::   (84° 34' 35"S, 162° 33' 57"E)
Note: the NHM and MetBase coordinates are 88.2 km apart

     This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names)
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