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Lewis Cliff 88366
Basic information Name: Lewis Cliff 88366
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88366
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 3.6 g
Antarctic Meteorite Newsletter:  AMN 14(1)  (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: 4521
Writeup from AMN 14(1):

Sample No: LEW88366

Location: Lewis Cliff

Field Number: 4521

Dimensions (cm): 2 x 1.7 x 0.5

Weight (g): 3.6

Meteorite Type: LL3 chondrite


Macroscopic Description: Robbie Marlow

Dull black fusion crust totally encases LEW88366. Many dark and light colored weathered inclusions are visible in the dark matrix of this small specimen.


Thin Section Description: Brian Mason

The section shows an aggregate of chondrules and chondrule fragments, up to 2.4 mm across, in a small amount of finely granular matrix consisting of olivine and pyroxene with 1-2% of troilite and nickel iron. The section is rimmed with will-preserved fusion crust. Weathering is slight, indicated by minor brown limonitic staining. Microprobe analyses show olivine, Fa1-19, mean Fa14 (CV FeO is 56); pyroxene, Fs2-21, The very small amount of nickel-iron suggests LL group, and the variability of olivine and pyroxene compositions type 3, hence the meteorite is classified as an LL3 chondrite (estimated LL3.4).


Data from:
  Table 2
  Line 4218:
Origin or pseudonym:Lower Ice Tongue
Mass (g):3.6
Weathering grade:B/C
Fayalite (mol%):1-19
Ferrosilite (mol%):2-21
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References: Published in Antarctic Meteorite Newsletter 14(1) (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° 15' 11"S, 161° 25' 39"E)
Note: the NHM and MetBase coordinates are 5.1 km apart

     This is 1 of 43352 approved meteorites from Antarctica (plus 3802 unapproved names)
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