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Lewis Cliff 85396
Basic information Name: Lewis Cliff 85396
     This is an OFFICIAL meteorite name.
Abbreviation: LEW 85396
Observed fall: No
Year found: 1985
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 60.2 g
Antarctic Meteorite Newsletter:  AMN 10(1)  (1987)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.6
NHM Catalogue:  5th Edition  (2000)  L3.6
MetBase:  v. 7.1  (2006)  L3.6
Recommended:  L3.6    [explanation]

This is 1 of 59 approved meteorites classified as L3.6.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Field number: 3102
Writeup from AMN 10(1):

Sample No.: LEW85396

Location: Lewis Cliff

Weight (g): 60.2

Field No.: 3102

Dimensions (cm): 4.5x3.0x2.0

Meteorite Type: L3 Chondrite


Macroscopic Description: Cecilia Satterwhite

Some exterior surfaces retain the black fusion crust. Areas without fusion crust are dark brown and show some light colored chondrules/inclusions. The interior is extensively weathered, though a few small inclusions/chondrules are visible.


Thin section (,3) Description: Brian Mason

The section shows a closely packed mass of chondrules (0.3-1.8 mm across), chondrule fragments, and irregular granular aggregates, set in a small amount of dark matrix which includes minor amounts of nickel-iron and troilite. Most chondrules consist of granular or porphyritic olivine, some with polysynthetically twinned clinopyroxene. Some weathering is indicated by the presence of a moderate amount of brown limonite as veinlets and patches. Both olivine and pyroxene show a wide range in composition: olivine, Fa1-26, mean Fa13; pyroxene, Fs3-25. This range of compositions indicates type 3, and the small amount of nickel-iron suggests L group; the meteorite is therefore classed as an L3 chondrite.

Data from:
  Table 2
  Line 2968:
Origin or pseudonym:Upper Ice Tongue
Mass (g):60.2
Weathering grade:C
Fayalite (mol%):2-26
Ferrosilite (mol%):3-25
Comments:85396 pairing group
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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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     Catalogue of Meteorites:   (84° 17'S, 161° 5'E)
     Recommended::   (84° 16' 50"S, 161° 23' 28"E)
Note: the NHM and MetBase coordinates are 3.4 km apart

     This is 1 of 41908 approved meteorites from Antarctica (plus 3802 unapproved names)
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