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Lewis Cliff 88467
Basic information Name: Lewis Cliff 88467
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 88467
Observed fall: No
Year found: 1988
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 6.6 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 14(2)  (1991)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.8
NHM Catalogue:  5th Edition  (2000)  L3.8
MetBase:  v. 7.1  (2006)  L3.8
Recommended:  L3.8    [explanation]

This is 1 of 68 approved meteorites classified as L3.8.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Field number: 5253
Writeuphelp
Writeup from AMN 14(2):

Sample No.: LEW88467

Location: Lewis Cliff

Field Number: 5253

Dimensions (cm): 1.6 x 1.5 x 1.4

Weight (g): 6.6

Meteorite Type: L3 chondrite

 

Macroscopic Description: Robbie Marlow

Eighty percent of the exterior of this friable unequilibrated chondrite is covered with dull black, pitted fusion crust. The interior is medium gray with abundant chondrules.

 

Thin Section (,2) Description: Brian Mason

The section shows chondrules and chondrule fragments, up to 2.8 mm across, in a finely granular matrix of olivine and pyroxene with minor troilite and nickel-iron. Minor weathering is indicated by limonitic staining associated with metal grains Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa6-15, mean Fa12 (CV FeO is 16); pyroxene, Fs3-15. The amount of nickel-iron suggests L group, and the variability of olivine and pyroxene compositions type 3, hence the meteorite is classified as an L3 chondrite (estimated L3.8).

 

Data from:
  MB76
  Table 2
  Line 4314:
Origin or pseudonym:Upper Ice Tongue
Mass (g):6.6
Class:L3.8
Weathering grade:B
Fayalite (mol%):6-15
Ferrosilite (mol%):3-15
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° 17' 52"S, 161° 17' 16"E)
Note: the NHM and MetBase coordinates are 2.8 km apart

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)
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