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Lewis Cliff 86002
Basic information Name: Lewis Cliff 86002
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 86002
Observed fall: No
Year found: 1986
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 32.6 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 10(2)  (1987)  Eucrite-unbr
Meteoritical Bulletin:  MB 76  (1994)  Eucrite-br
NHM Catalogue:  5th Edition  (2000)  Eucrite-br
MetBase:  v. 7.1  (2006)  Eucrite-mmict
Recommended:  Eucrite-br    [explanation]

This is 1 of 164 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Field number: 2361
Writeuphelp
Writeup from AMN 10(2):

Sample No.: LEW86002

Location: Lewis Cliff

Weight (g): 32.6

Field No.: 2361

Dimensions (cm): 5 x 2 x 2.5

Meteorite Type: Eucrite (Unbrecciated)

 

Macroscopic Description: Roberta Score

This oblong shaped basaltic achondrite is mostly covered with thin black fusion crust. Equal parts of mafic and non-mafic material makes up the interior. No large or distinct inclusions were exposed. Some oxidation is present.

 

Thin Section (,5) Description: Brian Mason

The section shows an ophitic intergrowth of pyroxene and plagioclase (plagioclase laths up to 0.7 mm long). Pyroxene compositions range from Wo3Fs61 to Wo37Fs31, with fairly uniform En content. Plagioclase composition is An90. The meteorite is an unbrecciated eucrite.

Data from:
  MB76
  Table 2
  Line 3045:
Origin or pseudonym:Upper Ice Tongue
Mass (g):32.6
Class:Eu "br"
Weathering grade:A/B
Ferrosilite (mol%):31-61
Comments:NTL=13±3
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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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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (84° 17'S, 161° 5'E)
     Recommended::   (84° 16' 9"S, 161° 21' 46"E)
Note: the NHM and MetBase coordinates are 3.5 km apart

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