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Lewis Cliff 88561
Basic information Name: Lewis Cliff 88561
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88561
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 10.7 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 14(2)  (1991)  LL3
Meteoritical Bulletin:  MB 76  (1994)  LL3.6
NHM Catalogue:  5th Edition  (2000)  LL3.6
MetBase:  v. 7.1  (2006)  LL3.3
Antarctic Meteorite Newsletter:  AMN 33(1)  (2010)  LL3.3
Recommended:  LL3.3    [explanation]

This is 1 of 15 approved meteorites classified as LL3.3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Field number: 4258
Writeuphelp
Writeup from AMN 14(2):

Sample No.: LEW88561

Location: Lewis Cliff

Field Number: 4258

Dimensions (cm): 3 x 1.1 x 1.2

Weight (g): 10.7

Meteorite Type: LL3 ch ondrite

 

Macroscopic Description: Cecilia Satterwhite

Shiny black fusion crust covers 95% of this meteorite. Abundant inclusions/chondrules are present in the dark brown matrix.

 

Thin Section (,2) Description: Brian Mason

The section shows abundant chondrules and chondrule fragments, up to 2.1 mm across, in a fine-grained matrix of olivine and pyroxene and a little nickel-iron and troilite. Brown limonitic staining and small areas of limonite are present throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa6-22, mean Fa13 (CV FeO is 37); pyroxene, Fs3-14. The variability of olivine and pyroxene compositions indicate type 3, and the amount of nickel-iron LL group, hence the meteorite is classified as an LL3 chondrite (estimated LL3.6).

 

Data from:
  MB76
  Table 2
  Line 4405:
Origin or pseudonym:Lower Ice Tongue
Mass (g):10.7
Class:LL3.6
Weathering grade:B/C
Fayalite (mol%):6-22
Ferrosilite (mol%):3-14
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 14(2) (1991), 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' 40"S, 161° 26' 40"E)
Note: the NHM and MetBase coordinates are 5.9 km apart

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