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Queen Alexandra Range 97053
Basic information Name: Queen Alexandra Range 97053
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 97053
Observed fall: No
Year found: 1997
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 75.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 22(1)  (1999)  Eucrite-unbr
Meteoritical Bulletin:  MB 83  (1999)  Eucrite-unbr
NHM Catalogue:  5th Edition  (2000)  Eucrite-unbr
MetBase:  v. 7.1  (2006)  Eucrite
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 91 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Field number: 9823
Writeuphelp
Writeup from AMN 22(1):

Sample No.:

QUE 97 053

Location:

Queen Alexandra Range

Dimensions (cm):

4.5x3.5x3.5

Weight (g):

75.14

Meteorite Type:

Eucrite (Unbrecciated)

QUE97053 Thumbnail

Macroscopic Description: Kathleen McBride

The exterior of this broken piece has fusion crust on approximately 50% of its surface. The fusion crust is very black and shiny with striations. The exposed interior is fine-grained with black and white matrix and with medium brown inclusions. The interior has black and white granular crystals and dark grains of pyroxenes. Transparent to translucent plagioclase grains are visible. There is very minor rust or root beer colored grains near the exterior.

Thin Section (, 2) Description: Tim McCoy

QUE97053 - Cross-Polarized Light 1.3 mm

The section consists of mm-sized grains of pyroxene and plagioclase. Pyroxene is pigeonite to subcalcic augite in composition (Fs41.2-49 Wo6.5-24.5) with an Fe/Mn ratio of about 30. Many grains are twinned on a very fine scale with augite lamellae of <= 2μm in width. Plagioclase has a composition of An79-89. Shock effects are pervasive, including mosaicism in pyroxene and undulatory extinction in plagioclase. The meteorite is an unbrecciated eucrite.

Data from:
  MB83
  Table A1
  Line 368:
Origin or pseudonym:Mare Meteoriticus
Mass (g):75.1
Class:Eu "ub"
Weathering grade:A
Ferrosilite (mol%):41-49
Catalogs:
Search for specimens in the Smithsonian Institution collection (U.S.):   
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References: Published in Antarctic Meteorite Newsletter 22(1) (1999), JSC, Houston
Published in Meteoritical Bulletin, no. 83, MAPS 34, A169-A186 (1999)
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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° 33' 57"S, 162° 8' 20"E)
Note: the NHM and recommended coordinates are 90.7 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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