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Lewis Cliff 88596
Basic information Name: Lewis Cliff 88596
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88596
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 8.9 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 14(2)  (1991)  LL3
Meteoritical Bulletin:  MB 76  (1994)  LL3.4
NHM Catalogue:  5th Edition  (2000)  LL3.4
MetBase:  v. 7.1  (2006)  LL3.4
Recommended:  LL3.4    [explanation]

This is 1 of 24 approved meteorites classified as LL3.4.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Field number: 5322
Writeuphelp
Writeup from AMN 14(2):

Sample No.: LEW88596

Location: Lewis Cliff

Field Number: 5322

Dimensions (cm): 2.3 x 2.1 x 0.5

Weight (g): 8.9

Meteorite Type: LL3 chondrite

 

Macroscopic Description: Cecilia Satterwhite

Seventy-five percent of this chondrite is covered by fusion crust. Chipping this sample revealed a dark brown to black interior with some rusty areas. Evaporite deposit was noted. Light gray and cream colored inclusions/chondrules are present.

 

Thin Section (,2) Description: Brian Mason

The section shows a close-packed aggregate of chondrules and chondrule fragments, up to 1.2 mm across, in a black opaque groundmass which contains a little nickel-iron and troilite. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa2-38, mean Fa13 (CV FeO is 65); pyroxene, Fs1-18. The variability of olivine and pyroxene compositions indicates type 3, and the small amount of nickel-iron LL group, hence the meteorite is classified as an LL3 chondrite (estimated LL3.4).

 

Data from:
  MB76
  Table 2
  Line 4438:
Origin or pseudonym:Lower Ice Tongue
Mass (g):8.9
Class:LL3.4
Weathering grade:Ce
Fayalite (mol%):2-38
Ferrosilite (mol%):1-18
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° 15' 8"S, 161° 27' 15"E)
Note: the NHM and MetBase coordinates are 5.4 km apart

Statistics:
     This is 1 of 38937 approved meteorites from Antarctica (plus 5051 unapproved names)
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