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Lewis Cliff 88696
Basic information Name: Lewis Cliff 88696
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88696
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 6 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 15(1)  (1992)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.7
NHM Catalogue:  5th Edition  (2000)  L3.7
MetBase:  v. 7.1  (2006)  L3
Recommended:  L3.7    [explanation]

This is 1 of 51 approved meteorites classified as L3.7.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Field number: 6144
Writeuphelp
Writeup from AMN 15(1):

Sample No.: LEW88696

Location: Lewis Cliff

Field Number: 6144

Dimensions (cm): 2.1 x 1.8 x 1.0

Weight (g): 6.0

Meteorite Type: L3 chondrite

 

Macroscopic Description: Robbie Marlow,

Ninety percent of LEW88696 is covered with smooth brown fusion crust. Abundant millimeter-sized inclusions are visible in the gray matrix. Oxidation appears as large patches scattered throughout the interior.

 

Thin Section (,2) Description: Brian Mason

The section shows numerous chondrules and chondrule fragments, up to 2.4 mm across, in a groundmass of fine-grained olivine and pyroxene with a minor amount of nickel-iron and troilite. Weathering is extensive, with limonitic staining and small areas of red-brown limonite throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa5-19, mean Fa16 (CV FeO is 28); pyroxene, Fs6-19. The variability of olivine and pyroxene compositions indicates type 3, and the amount of nickel-iron L group, hence the meteorite is classified as an L3 chondrite (estimated L3.7).

 

Data from:
  MB76
  Table 2
  Line 4536:
Origin or pseudonym:Upper Ice Tongue
Mass (g):6
Class:L3.7
Weathering grade:B/C
Fayalite (mol%):5-19
Ferrosilite (mol%):6-19
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 15(1) (1992), 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' 20"S, 161° 24' 40"E)
Note: the NHM and MetBase coordinates are 3.9 km apart

Statistics:
     This is 1 of 40753 approved meteorites from Antarctica (plus 4494 unapproved names)
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