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Queen Alexandra Range 86900
Basic information Name: Queen Alexandra Range 86900
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 86900
Observed fall: No
Year found: 1986
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1532 g
Antarctic Meteorite Newsletter:  AMN 10(2)  (1987)  Mesosiderite
Meteoritical Bulletin:  MB 76  (1994)  Mesosiderite
NHM Catalogue:  5th Edition  (2000)  Mesosiderite
MetBase:  v. 7.1  (2006)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 222 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Field number: 3050
Writeup from AMN 10(2):

Sample No.: QUE86900

Location: Queen Alexandra Range

Weight (g): 1532.3

Field No.: 3050

Dimensions (cm): 13 x 10 x 6.5

Meteorite Type: Mesosiderite


Macroscopic Description: Roberta Score

QUE86900 has an overall color of red-brown. Dull black fusion crust appears as isolated blebs and covers about 10% of the meteorite. Large green platy pyroxene crystals are abundant, the largest is 1.5 cm in the longest dimension. Shallow regmaglypts are present on most exterior surfaces. One exterior fracture surface has blebs of fusion crust on it. Cleaving the specimen, which was easily accomplished, revealed an interior that has numerous platy inclusions and dark rounded inclusions in a highly weathered, pliable red-brown metal-rich matrix.


Thin Section (,5) Description: Brian Mason

The section shows plagioclase and pyroxene clasts, up to 1.5 mm across, in an opaque matrix of nickel-iron and troilite (the nickel-iron extensively weathered to limonite). Most of the pyroxene is hypersthene, but some pigeonite is present; composition ranges are Wo1-11, En31-78, Fs21-64, with a mean of Wo3Fs33. Most plagioclase compositions are in the range An90-96, but a few more sodic grains were analysed. The meteorite is a mesosiderite.

Data from:
  Table 2
  Line 5285:
Origin or pseudonym:Goodwin Nunataks Icefields
Mass (g):1532.3
Weathering grade:C
Ferrosilite (mol%):21-64
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References: Published in Antarctic Meteorite Newsletter 10(2) (1987), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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     Catalogue of Meteorites:   (84°S, 168°E)
     Recommended::   (84° 36' 13"S, 162° 27' 21"E)
Note: the NHM and MetBase coordinates are 91.2 km apart

     This is 1 of 43331 approved meteorites from Antarctica (plus 3802 unapproved names)
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