Meteoritical Bulletin: Entry for Lewis Cliff 85401

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Lewis Cliff 85401

Basic information

Name: Lewis Cliff 85401
This is an OFFICIAL meteorite name.
Abbreviation: LEW 85401
Observed fall: No
Year found: 1985
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 3.9 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 10(1)	(1987)	L3
Meteoritical Bulletin:	MB 76	(1994)	L3.3
NHM Catalogue:	5th Edition	(2000)	L3.3
MetBase:	v. 7.1	(2006)	L3.3
Recommended:			L3.3 [explanation]

This is 1 of 18 approved meteorites classified as L3.3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Field number: 3124

Writeup

Writeup from AMN 10(1):

Sample No.: LEW85401

Location: Lewis Cliff

Weight (g): 3.9

Field No.: 3124

Dimensions (cm): 2x1.5x1

Meteorite Type: L3 Chondrite

Macroscopic Description: Roberta Score

Entire angular stone is covered with dull black and brown fusion crust. Interior is heavily oxidized but the clastic nature of LEW85401 is still visible.

Thin Section (,2) Description: Brian Mason

The section is very similar to that of LEW85396, and the same description applies to both. Olivine and pyroxene show similar ranges in composition, although the mean Fa of olivine is lower in LEW85401: olivine, Fa1-28, mean Fa7; pyroxene, Fs1-20. This meteorite is therefore classified as an L3 chondrite, and the possibility of pairing with LEW85396 should be considered.

Data from:
  MB76
  Table 2
  Line 2973:

Origin or pseudonym:	Upper Ice Tongue
Mass (g):	3.9
Class:	L3.3
Weathering grade:	B/C
Fayalite (mol%):	1-28
Ferrosilite (mol%):	1-20
Comments:	85396 pairing group

Catalogs:

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References:

Published in Antarctic Meteorite Newsletter 10(1) (1987), 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° 16' 4"S, 161° 26' 8"E)

Note: the NHM and MetBase coordinates are 4.3 km apart

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

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