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Lewis Cliff 87214
Basic information Name: Lewis Cliff 87214
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 87214
Observed fall: No
Year found: 1987
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 0.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 12(1)  (1989)  C4
AMN 17(1)  (1994)  CK4
Meteoritical Bulletin:  MB 76  (1994)  CK4
NHM Catalogue:  5th Edition  (2000)  CK4
MetBase:  v. 7.1  (2006)  CK4
Recommended:  CK4    [explanation]

This is 1 of 105 approved meteorites classified as CK4.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Field number: 4734
Writeuphelp
Writeup from AMN 12(1):

Sample No.: LEW 87214

Location: Lewis Cliff

Weight(g): 0.4

Field No.: 4734

Dimensions (cm): 1x0.6x0.3

Meteorite Type: C4 Chondrite

 

Macroscopic Description: Carol Schwarz

Black fusion crust covers about 40% of this tiny specimen. The interior is gray and very fine-grained.

 

Thin Section (,3) Description: Brian Mason

The section shows an aggregate of small (0.01-0.02 mm) olivine grains and a little opaque material, with sparse chondrules up to 0.6 mm across. Olivine composition is essentially uniform, Fa29; no orthopyroxene was found but one grain of diopside, Wo45Fs10, was analysed. Two grains of plagioclase, An31 and An67, were analysed. The meteorite is a C4 chondrite.

Data from:
  MB76
  Table 2
  Line 3781:
Origin or pseudonym:South Lewis Cliff
Mass (g):0.4
Class:CK4
Weathering grade:A/B
Fayalite (mol%):29
Comments:87214 pairing group
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° 20' 33"S, 161° 15' 9"E)
Note: the NHM and MetBase coordinates are 6.9 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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