Meteoritical Bulletin: Entry for Lewis Cliff 87016

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Lewis Cliff 87016

Basic information

Name: Lewis Cliff 87016
This is an OFFICIAL meteorite name.
Abbreviation: LEW 87016
Observed fall: No
Year found: 1987
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 16.8 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 11(2)	(1988)	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 636 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: 0

Writeup

Writeup from AMN 11(2):

Sample No.: LEW87016

Location: Lewis Cliff

Weight (g): 16.8

Field No.: 4280

Dimensions (cm): 3 x 2 x 2.5

Meteorite Type: C2 Chondrite

Macroscopic Description: Carol Schwarz

This specimen consists of two fragments which fit together. The exterior is very weathered with a small amount of fractured fusion crust remaining. The interior is black with many sub-mm chondrules.

Thin Section (,2) Description: Brian Mason

The section shows chondrules, up to 1.2 mm across, and small mineral grains in a dark brown to black matrix. Microprobe analyses show some olivine near Mg2SiO4 in composition, but ranging up to Fa28 (mean composition Fa5); a little pyroxene, near MgSiO3, is present. The meteorite is a C2 chondrite, but does not appear to belong to the LEW87001 group.

Data from:
  MB76
  Table 2
  Line 3594:

Origin or pseudonym:	South Lewis Cliff
Mass (g):	16.8
Class:	C2
Weathering grade:	B
Fayalite (mol%):	0-28
Ferrosilite (mol%):	0-1

Catalogs:

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References:

Published in Antarctic Meteorite Newsletter 11(2) (1988), 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' 39"S, 161° 22' 44"E)

Note: the NHM and recommended coordinates are 7.5 km apart

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

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Revision
history:

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