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Lewis Cliff 88281
Basic information Name: Lewis Cliff 88281
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88281
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 9.7 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 13(3)  (1990)  Ureilite
AMN 17(1)  (1994)  Ureilite-augite-bearing
Meteoritical Bulletin:  MB 76  (1994)  Ureilite-augite-bearing
NHM Catalogue:  5th Edition  (2000)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 658 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Field number: 6037
Writeuphelp
Writeup from AMN 13(3):

Sample No. LEW88281

Location: Lewis Cliff

Dimensions (cm): 3 x 2 x 1

Field Number: 6037

Weight (g): 9.7

Meteorite Type: Ureilite

 

Macroscopic Description: Cecilia Satterwhite

Some thin polished fusion crust remains on the exterior of this ureilite. The interior is bluish-black in color, crystal faces are easily noticed and oxidation is moderate.

 

Thin Section (,2) Description: Brian Mason

The section shows an equigranular aggregate of olivine and pyroxene, as rounded to subhedral grains 0.3-0.6 mm across. The grains are rimmed with black carbonaceous material, which contains trace amounts of nickel-iron (largely weathered to brown limonite) and troilite. Microprobe analyses give the following compositions: olivine, Fa9; pyroxene, Wo5Fs8. The meteorite is a ureilite; it is very similar in texture and mineral compositions to LEW 85440, 88012, and 88201, with which it is probably paired.

Data from:
  MB76
  Table 2
  Line 4135:
Origin or pseudonym:Lower Ice Tongue
Mass (g):9.7
Class:Ur "aug"
Weathering grade:B
Fayalite (mol%):9
Ferrosilite (mol%):8
Comments:85440 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 13(3) (1990), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (84° 17'S, 161° 5'E)
     Recommended::   (84° 14' 12"S, 161° 28' 16"E)
Note: the NHM and MetBase coordinates are 6.8 km apart

Statistics:
     This is 1 of 44400 approved meteorites from Antarctica (plus 3802 unapproved names)
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