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Lewis Cliff 88632
Basic information Name: Lewis Cliff 88632
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88632
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 10.3 g
Antarctic Meteorite Newsletter:  AMN 14(2)  (1991)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.6
NHM Catalogue:  5th Edition  (2000)  L3.6
MetBase:  v. 7.1  (2006)  L3.6
Recommended:  L3.6    [explanation]

This is 1 of 59 approved meteorites classified as L3.6.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Field number: 6115
Writeup from AMN 14(2):

Sample No.: LEW88632

Location: Lewis Cliff

Field Number: 6115

Dimensions (cm): 2.5 x 1.5 x 1.3

Weight (g): 10.3

Meteorite Type: L3 chondrite


Macroscopic Description: Cecilia Satterwhite

This weathered chondrite has 80% of its exterior covered with fusion crust. The dark brown interior contains numerous chondrules. Some metal is still obvious.


Thin Section (,2) Description: Brian Mason

The section shows a close-packed aggregate of chondrules and chondrule fragments, up to 1.8 mm across, in a fine-grained matrix of olivine and pyroxene with minor amounts of nickel-iron and troilite. Brown limonitic staining pervades the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa2-21, mean Fa12 (CV FeO is 37); pyroxene, Fs8-23. 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 L3.6).


Data from:
  Table 2
  Line 4472:
Origin or pseudonym:Upper Ice Tongue
Mass (g):10.3
Weathering grade:B/C
Fayalite (mol%):2-21
Ferrosilite (mol%):8-23
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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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     Catalogue of Meteorites:   (84° 17'S, 161° 5'E)
     Recommended::   (84° 16' 16"S, 161° 25' 33"E)
Note: the NHM and MetBase coordinates are 4 km apart

     This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names)
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