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Lewis Cliff 88011
Basic information Name: Lewis Cliff 88011
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88011
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 13(2)  (1990)  Diogenite
Meteoritical Bulletin:  MB 76  (1994)  Diogenite
NHM Catalogue:  5th Edition  (2000)  Diogenite
MetBase:  v. 7.1  (2006)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 465 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Field number: 5677
Writeuphelp
Writeup from AMN 13(2):

Sample No. LEW88011

Location: Lewis Cliff

Dimensions (cm): 1.5x1.5x6

Field Number: 5677

Weight (g): 2.0

Meteorite Type: Diogenite

 

Macroscopic Description: Roberta Score

Thin shiny fusion crust covers 40% of the exterior of LEW88011. Flow lines are present on the bottom surface. The interior of LEW88011 contains black and white inclusions that are ~0.5 mm in length. No oxidation is visible.

 

Thin Section (,3) Description: Brian Mason

The section has a cataclastic texture, and consists almost entirely of pyroxene, in grains up to 0.9 mm in maximum dimension; a little plagioclase and chromite are also present. Microprobe analyses show pyroxene of uniform composition, Wo3Fs24; plagioclase composition is An90. The meteorite is a diogenite.

Data from:
  MB76
  Table 2
  Line 3868:
Origin or pseudonym:Upper Ice Tongue
Mass (g):2
Class:Diog
Weathering grade:A
Ferrosilite (mol%):24
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 13(2) (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° 16' 50"S, 161° 23' 15"E)
Note: the NHM and MetBase coordinates are 3.4 km apart

Statistics:
     This is 1 of 40849 approved meteorites from Antarctica (plus 4494 unapproved names)
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