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Lewis Cliff 87148
Basic information Name: Lewis Cliff 87148
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 87148
Observed fall: No
Year found: 1987
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 42.5 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 12(1)  (1989)  C2
Meteoritical Bulletin:  MB 76  (1994)  C2
NHM Catalogue:  5th Edition  (2000)  C2
MetBase:  v. 7.1  (2006)  CM2
Antarctic Meteorite Newsletter:  AMN 31(1)  (2008)  CM2
Recommended:  CM2    [explanation]

This is 1 of 540 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Field number: 4410
Writeuphelp
Writeup from AMN 12(1):

Sample No.: LEW 87148

Location: Lewis Cliff

Weight(g): 42.5

Field No.: 4410

Dimensions (cm): 4.5x3x2

Meteorite Type: C2 Chondrite

 

Macroscopic Description: Cecilia Satterwhite

This carbonaceous chondrite's exterior is covered by black fractured fusion crust which

is shiny and frothy in some areas and dull in others. The interior is black with small (<0.5 cm) cream colored clasts. Along the edges there are evaporites.

 

Thin Section (,2). Description: Brian Mason

About 80% of the section consists of black matrix; chondrules and mineral grains being small and sparse. No troilite or nickel-iron was seen. Most of the chondrules and mineral grains are olivine, usually close to Mg2SiO4 in composition; pyroxene is rare. The meteorite is a C2 chondrite.

Data from:
  MB76
  Table 2
  Line 3718:
Origin or pseudonym:South Lewis Cliff
Mass (g):42.5
Class:C2
Weathering grade:Ae
Fayalite (mol%):0-22
Ferrosilite (mol%):2-58
Comments:NTL=<1
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 12(1) (1989), 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° 21' 47"S, 161° 13' 25"E)
Note: the NHM and MetBase coordinates are 9 km apart

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