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Queen Alexandra Range 93513
Basic information Name: Queen Alexandra Range 93513
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 93513
Observed fall: No
Year found: 1993
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1.7 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 18(2)  (1995)  E4
Meteoritical Bulletin:  MB 79  (1996)  E4
NHM Catalogue:  5th Edition  (2000)  E4
MetBase:  v. 7.1  (2006)  EH4
Antarctic Meteorite Newsletter:  AMN 31(1)  (2008)  EH4
Recommended:  EH4    [explanation]

This is 1 of 20 approved meteorites classified as EH4.   [show all]
Search for other: EH chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Field number: 8125
Writeuphelp
Writeup from AMN 18(2):
Sample No.:
QUE93513
Location:Queen Alexandra Range
Dimensions (cm):0.5 x 0.4 x 0.2
Weight (g):0.2
Meteorite Type:E4 Chondrite

Macroscopic Description: Carol Schwarz
Approximately 50% of this tiny rusty and fractured fragment is covered with dark reddish brown fusion crust. Some metal is visible. The entire sample is now embedded in epoxy.

Thin Section (,1) Description: Brian Mason
The section shows an aggregate of chondrules and chondrule fragments, up to 1.2 mm across, and mineral grains in a moderate amount of black matrix. The chondrules and mineral grains consist almost entirely of pyroxene, with possible traces of olivine. The matrix contains a moderate amount of nickel-iron and sulfides. Weathering is extensive, with veinlets and patches of brown limonite throughout the section. Microprobe analyses show that the pyroxene is close to MgSiO3 in composition (FeO 0.7-1.8%, CaO 0.2-0.6%). The nickel-iron contains 2.1-2.4% Si. One grain of roedderite, NaKMg5Si12O30, was analyzed. The meteorite is classified as an E4 chondrite.

Data from:
  MB79
  Table 2
  Line 1078:
Origin or pseudonym:Footrot Flats
Mass (g):0.2
Class:E4
Weathering grade:B/C
Ferrosilite (mol%):1-2
Comments:93513 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 18(2) (1995), JSC, Houston
Published in Meteoritical Bulletin, no. 79, MAPS 31, A161-A174 (1996)
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (84°S, 168°E)
     Recommended::   (84° 34' 35"S, 162° 33' 58"E)
Note: the NHM and recommended coordinates are 88.2 km apart

Statistics:
     This is 1 of 38940 approved meteorites from Antarctica (plus 5051 unapproved names)
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