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Lewis Cliff 85309
Basic information Name: Lewis Cliff 85309
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 85309
Observed fall: No
Year found: 1985
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 54.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 9(3)  (1986)  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
AMN 41(1)  (2018)  CM2-an
Recommended:  CM2-an    [explanation]

This is 1 of 10 approved meteorites classified as CM2-an.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Field number: 2047
Revised 3 Jun 2019: reclassified in AMN 41(1)
Writeuphelp
Writeup from AMN 9(3):

Writeup from AMN 41(1):
LEW 85309: reclassification

Listed by Choe et al. (2010) as CM2-anomalous
Bibliography:
  • Choe W. H., Huber H., Rubin A.E., Kallemeyn G. W., and Wasson J. T. (2010) Compositions and taxonomy of 15 unusual carbonaceous chondrites. Meteorit. Planet. Sci. 45, 531-554 (link)
Data from:
  MB76
  Table 2
  Line 2883:
Origin or pseudonym:Upper Ice Tongue
Mass (g):54.1
Class:C2
Weathering grade:A/Be
Fayalite (mol%):0.2-41
Ferrosilite (mol%):0.9-1.5
Comments:NTL=<1; 85306 pairing group
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 41(1) (2018), JSC, Houston
Published in Antarctic Meteorite Newsletter 9(3) (1986), 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' 57"S, 161° 40' 50"E)
Note: the NHM and MetBase coordinates are 6.6 km apart

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